Starlight - Billy
An on-field Physical Rupture main DPS who uses Sheer Force scaling off Max HP, ignores DEF, and spends HP to charge Determination before unleashing his Full-Throttle Starlight finisher.
Tier S · Rupture · Physical. BiS: Starlight Rider Faceplate. An on-field Physical Rupture main DPS who uses Sheer Force scaling off Max HP, ignores DEF, and spends HP to charge Determination before unleashing his Full-Throttle Starlight finisher.
Base stats
Recommended build
Best W-Engines
Billy
Recommendation order by current meta — the first is strongest, the rest are alternatives in decreasing priority. (Not a simulated DPS %.)
Recommended Drive Discs
Yunkui Tales
Fanged Metal
Branch & Blade Song4: CRIT Rate / CRIT DMG · 5: HP% (or Physical DMG) · 6: HP%
Prioritize CRIT Rate > CRIT DMG > HP% > ATK%; HP is the source of Sheer Force, so don't skip it.
Skill priority: Core Skill > Special Attack > Basic Attack > Chain > Assist > Dodge.
Recommended teams
Worth pulling if you like on-field Rupture burst and own Lucia — Billy converts HP into Sheer Force and ignores DEF, giving a high damage ceiling. Downsides: as a Rupture unit most ordinary buffs do NOT apply to him, so he needs dedicated Rupture supports (Lucia/Pan Yinhu) to reach full power; without the right support type he visibly falls off. This guide is still new, so numbers may be adjusted.
Pan YinhuRole Ranking
The list below is pulled straight from the overall Tier List, keeping only the 5 agents who share the Rupture role. Order within each tier is NOT a strength ranking — it simply groups agents by their original tier.
Stat targets
Battle-start targets: HP ~19,200 / Crit Rate ~67% / Crit DMG ~98%. The key point: HP IS his damage — each point of Max HP makes 0.1 Sheer Force, and Sheer Force is the multiplier for all his Sheer DMG (true damage that ignores DEF), so stack HP even ahead of CRIT. With his signature Starlight Rider Faceplate (+20% CR) plus 4pc Yunkui Tales (+12% CR), Crit Rate reaches ~99% almost for free, freeing substats for HP% and Crit DMG. Substat priority: Crit Rate > HP% > Crit DMG > ATK. Main stats: slot 4 Crit Rate/Crit DMG · slot 5 HP% (or Physical DMG) · slot 6 HP%. Mechanic note: EX Special (Drive Suppression) requires HP above 25% to fire, so don't let HP drop too low.
Rotation & combos
1) OPENER: enter with 60 Adrenaline ready (Core Passive Knight's Resolve), press Special (Drive Suppression) to turn on the Crit DMG buff and start building Determination. 2) Chain into EX Special → Cool Wheelie and its follow-ups for damage while gathering Determination via hits/dodges/EX. 3) SUSTAIN: re-press Special periodically to keep the Crit DMG buff up, and keep HP above 25% (hits, Dodge Counters and EX all manage/restore HP) so EX stays usable. 4) FINISHER: at 100 Determination, HOLD Basic to unleash Full-Throttle Starlight — his heaviest Sheer DMG payoff. 5) Weave in Chain Attacks and Ultimate when available; quick-swap to a stunner (Dialyn/Ju Fufu) to open/extend the Break window, then hand the field back to Billy and repeat from step 1.
- Sheer DMG fully ignores DEF: excellent against the high-DEF bosses of endgame where normal DPS get walled.
- Very self-sufficient: enters with 60 Adrenaline, self-supplies the Crit DMG buff, and Counters cost no Adrenaline — a tidy kit with little reliance on buffers beyond Rupture support.
- The bike attacks while guarding: built-in defensive/counter frames on-field make him sturdy and harder to interrupt than most on-field DPS.
- Cheap HP scaling: HP is a common, easy-to-farm disc stat, so newer players can put together a serviceable Sheer build before min-maxing CRIT.
- As a Rupture unit, MOST common buffs (ATK%, DMG%) DON'T apply — he needs dedicated Rupture supports (Lucia/Pan Yinhu) to shine; without the right type his output drops noticeably.
- Heavily reliant on his signature Starlight Rider Faceplate (which carries 20% Crit Rate + Sheer DMG); the alternative Rupture engine pool is thin, so off-signature his ceiling drops clearly.
- HP micromanagement: EX Special needs HP above 25% to fire, forcing you to watch the health bar — long field time but sloppy play can lock you out of EX.
Recommended Bangboo
Endgame mode fit
Good in Shiyu Defense: single-target Rupture teams (Billy + Dialyn/Pan Yinhu + Lucia) — his DEF-ignoring Sheer DMG melts the mode's high-DEF bosses consistently, and his long on-field burst makes him a solid single-side clearer. Needs a stunner to keep the Break rhythm and Lucia's Rupture buffs to hit his ceiling.
Also solid in Deadly Assault: bosses are tanky and high-DEF, so Billy's DEF-ignore is worth even more; he's durable, deals sustained damage via Full-Throttle Starlight, and rarely gets interrupted thanks to his guard frames. The catch is still needing the full Rupture support package (Lucia/Pan Yinhu); the guide is new (2.8 release) so rankings may shift.
Skills
Basic Attack2
Basic AttackBasic Attack: Knight's Technique
Press to activate: Performs up to four attacks forward, dealing Physical DMG. During the 4th hit, press to use Special Attack: Drive Suppression, reducing HP consumption by 50%. Restores a small amount of HP on hit.
Basic Attack: Full-Throttle Starlight
With enough Determination, hold to activate: Charges forward on the motorcycle, then fires a laser beam, dealing massive Physical DMG. Character is invulnerable while using this skill.
Dodge5
DodgeDodge: Close Call!
Press to activate: A quick dash dodge. Character is invulnerable while using this skill.
Dodge: Through the Galaxy
During Special Attack: Drive Suppression, drag the or hold to activate: Drifts with the motorcycle, enabling Perfect Dodges for a brief duration. If a Perfect Dodge is successfully triggered, it immediately chains into Dodge Counter: Afterfire Spin. During this skill, continue dragging the or holding to continue drifting. During this skill, the duration of Special Attack: Drive Suppression will continue, and upon reaching the maximum duration, it automatically chains into EX Special Attack: Cool Wheelie. If the skill ends early, it automatically chains into Special Attack: Run Wild. Character is briefly invulnerable and Anti-Interrupt Level increases during this skill.
Dash Attack: Starlight Retribution
Press during a dodge to activate: Performs a quick forward slash, dealing Physical DMG.
Dodge Counter: Duel King
Press during a Perfect Dodge to activate: Fires a blast from his arm cannon, dealing Physical DMG. If this skill is triggered via a Perfect Dodge, hitting an enemy restores 10% of Max HP, and it can be chained into the 4th hit of Basic Attack: Knight's Technique. Character is invulnerable while using this skill.
Dodge Counter: Afterfire Spin
During Dodge: Through the Galaxy, trigger a Perfect Dodge to activate: Spins with the bike to deal Physical DMG to surrounding enemies. After using this skill, it automatically chains into EX Special Attack: Cool Wheelie. Character is invulnerable while using this skill.
Assist3
AssistQuick Assist: Starlight - Power of Bonds
When the active character is launched, press to activate: Fires a blast from his arm cannon ahead, dealing Physical DMG. When HP is above 25%, this skill is replaced with Special Attack: Drive Suppression. This effect can trigger once every 5s. Character is invulnerable while using this skill.
Defensive Assist: Hero's Entrance
When the on-field character is about to be attacked, press to activate: Parries the enemy's attack, dealing massive Daze. Character is invulnerable while using this skill.
Assist Follow-Up: Villain's Exit
Press after a Defensive Assist to activate: Kicks the motorcycle at the target, dealing massive Physical DMG. Character is invulnerable while using this skill.
Special Attack5
Special AttackSpecial Attack: Drive Suppression
When HP is above 25%, press to activate: Consumes HP equal to 16% of Max HP to summon a motorcycle and swiftly crash into enemies, continuously dealing Physical DMG. If attacked by an enemy as the active character shortly upon activating this skill, triggers a block, negating the attack and restoring 5 Determination. After triggering a block, immediately chains into EX Special Attack: Cool Wheelie. After the skill continues for a while, it automatically chains into EX Special Attack: Cool Wheelie. Anti-Interrupt level is increased while using this skill.
Special Attack: Run Wild
Triggers automatically when Dodge: Through the Galaxy is interrupted: Kicks his motorcycle at enemies, dealing Physical DMG. After using this skill, it can be chained into Dodge Counter: Duel King. Anti-Interrupt level is increased while using this skill.
EX Special Attack: Cool Wheelie
Triggers automatically when Special Attack: Drive Suppression reaches its maximum duration or a block is triggered: Lifts the motorcycle to attack enemies, dealing Physical DMG. On hit, restores an additional 8 Determination. After using this skill, with enough Adrenaline, press or hold to chain into EX Special Attack: Rocking Footwork. After the skill animation ends, automatically chains into Special Attack: Run Wild. Character is invulnerable while using this skill.
EX Special Attack: High-Traction Wheels
With enough Adrenaline, hold to activate: Slams down with the motorcycle, dealing Physical DMG. Restores 30% of Max HP upon activating this skill. Character is invulnerable while using this skill.
EX Special Attack: Rocking Footwork
After activating EX Special Attack: Cool Wheelie and with enough Adrenaline, press or hold to activate: Uses the motorcycle and hand cannon for a combined attack, dealing Physical DMG. Upon activating this skill, restore 15% of Max HP. Character is invulnerable while using this skill.
Chain Attack2
Chain AttackChain Attack: Knight's Swagger
When a Chain Attack is triggered, select the character to activate: Launches a series of attacks forward, dealing massive Physical DMG. Upon activating this skill, gains 15 Determination. Character is invulnerable while using this skill.
Ultimate: Starlight Knight Flying Kick
When Decibel Rating is at Maximum, press to activate: Leaps into the air and delivers a flying kick at the target, dealing massive Physical DMG. Character is invulnerable while using this skill.
Core Skill2
Core SkillCore Passive: Knight's Resolve
Starlight - Billy gains extra Sheer Force based on his Max HP, with every 1 point of Max HP increasing Sheer Force by 0.1. All Physical DMG Starlight - Billy deals is Sheer DMG, ignoring enemy DEF and using his Sheer Force stat as the DMG Multiplier. Starlight - Billy restores 60 Adrenaline upon entering the battlefield. In Investigation Zone Mode, this effect can trigger once every 180s. When his HP is greater than 25%, press to consume HP and activate Special Attack: Drive Suppression. While in combat, each use of this skill increases his CRIT DMG by 45% for 45s. Repeated triggers refresh the duration. When HP is at or below 25%, the DMG he takes is reduced by 50%. Starlight - Billy gains Determination when his attacks hit enemies, with the amount depending on the skill used. Determination regenerates slowly while in combat, and is capped at 120. Hitting an enemy with EX Special Attack: Cool Wheelie, activating Chain Attack: Knight's Swagger, or triggering a block restores additional Determination. Triggering a Perfect Dodge by any means restores 3 Determination. This effect can trigger once every 0.5s. When Determination is greater than or equal to 100, hold to consume 100 Determination and activate Basic Attack: Full-Throttle Starlight. Hitting an enemy with Basic Attack: Knight's Technique restores a small amount of HP. Hitting an enemy with Dodge Counter: Duel King activated through a Perfect Dodge restores HP. Using EX Special Attack: High-Traction Wheels or EX Special Attack: Rocking Footwork restores HP.*Stats shown are at Base level.
Additional Ability: Blazing Starlight
When another character in your squad is a Stun, Defense, or Support character: Hitting an enemy with EX Special Attack: Cool Wheelie, the 4th hit of Basic Attack: Knight's Technique, Chain Attack, or Ultimate grants 1 stack of Starlight for 45s, up to a maximum of 2 stacks, Only one stack can be obtained per use of a skill. Each stack increases the DMG of Chain Attacks, Ultimates, EX Special Attacks, and Basic Attack: Full-Throttle Starlight by 20%.
Skill Coefficients by Level
Basic Attack2
Basic Attack: Knight's Technique
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st-Hit DMG Multiplier | 50.3% | 54.9% | 59.5% | 64.1% | 68.7% | 73.3% | 77.9% | 82.5% | 87.1% | 91.7% | 96.3% | 100.8% | 105.5% | 110.1% | 114.7% | 119.3% |
| 2nd-Hit DMG Multiplier | 68% | 74.2% | 80.4% | 86.6% | 92.8% | 99% | 105.2% | 111.4% | 117.6% | 123.8% | 130% | 136.2% | 142.4% | 148.6% | 154.8% | 161% |
| 3rd-Hit DMG Multiplier | 54.5% | 59.5% | 64.5% | 69.5% | 74.5% | 79.5% | 84.5% | 89.5% | 94.5% | 99.5% | 104.5% | 109.5% | 114.5% | 119.5% | 124.5% | 129.5% |
| 4th-Hit DMG Multiplier | 206% | 224.8% | 243.6% | 262.4% | 281.2% | 300% | 318.8% | 337.6% | 356.4% | 375.2% | 394% | 412.8% | 431.6% | 450.4% | 469.2% | 488% |
| 1st-Hit Daze Multiplier | 39.9% | 41.8% | 43.7% | 45.6% | 47.5% | 49.4% | 51.3% | 53.2% | 55.1% | 57% | 58.9% | 60.8% | 62.7% | 64.6% | 66.5% | 68.4% |
| 2nd-Hit Daze Multiplier | 56.8% | 59.4% | 62% | 64.6% | 67.2% | 69.8% | 72.4% | 75% | 77.6% | 80.2% | 82.8% | 85.4% | 88% | 90.6% | 93.2% | 95.8% |
| 3rd-Hit Daze Multiplier | 48% | 50.1% | 52.4% | 54.6% | 56.8% | 59% | 61.2% | 63.4% | 65.6% | 67.8% | 70% | 72.2% | 74.4% | 76.6% | 78.8% | 81% |
| 4th-Hit Daze Multiplier | 163.5% | 171% | 178.5% | 186% | 193.5% | 201% | 208.5% | 216% | 223.5% | 231% | 238.5% | 246% | 253.5% | 261% | 268.5% | 276% |
Basic Attack: Full-Throttle Starlight
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st-Hit DMG Multiplier | 1043.2% | 1138.1% | 1233% | 1327.9% | 1422.8% | 1517.7% | 1612.5% | 1707.5% | 1802.4% | 1897.3% | 1992.2% | 2087.1% | 2182% | 2276.9% | 2371.8% | 2446.7% |
| 2nd-Hit Daze Multiplier | 341.1% | 356.7% | 372.3% | 387.9% | 403.4% | 419.1% | 434.7% | 450.3% | 465.9% | 481.5% | 497.1% | 512.7% | 528.3% | 543.9% | 559.5% | 575.1% |
| Determination Cost | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Dodge3
Dash Attack: Starlight Retribution
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 45.1% | 49.2% | 53.3% | 57.4% | 61.5% | 65.6% | 69.7% | 73.8% | 77.9% | 82% | 86.1% | 90.2% | 94.3% | 98.4% | 102.5% | 106.6% |
| Daze Multiplier | 23.9% | 25% | 26.1% | 27.2% | 28.3% | 29.4% | 30.5% | 31.6% | 32.7% | 33.8% | 34.9% | 36% | 37.1% | 38.2% | 39.3% | 40.4% |
Dodge Counter: Duel King
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 119.5% | 130.4% | 141.3% | 152.2% | 163.1% | 174% | 184.9% | 195.8% | 206.7% | 217.6% | 228.5% | 239.4% | 250.3% | 261.2% | 272.1% | 283% |
| Daze Multiplier | 97.3% | 101.8% | 106.3% | 110.8% | 115.3% | 119.8% | 124.3% | 128.8% | 133.3% | 137.8% | 142.3% | 146.8% | 151.3% | 155.8% | 160.3% | 164.8% |
Dodge Counter: Afterfire Spin
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 198.7% | 216.8% | 234.9% | 253% | 271.1% | 289.2% | 307.3% | 325.4% | 343.5% | 361.6% | 379.7% | 397.8% | 415.9% | 434% | 452.1% | 470.2% |
| Daze Multiplier | 187% | 195.5% | 204% | 212.5% | 221% | 229.5% | 238% | 246.5% | 255% | 263.5% | 272% | 280.5% | 289% | 297.5% | 306% | 314.5% |
Assist3
Quick Assist: Starlight - Power of Bonds
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 92% | 100.3% | 108.8% | 117.2% | 125.6% | 134% | 142.4% | 150.8% | 159.2% | 167.6% | 176% | 184.4% | 192.8% | 201.2% | 209.6% | 218% |
| Daze Multiplier | 48.7% | 51% | 53.3% | 55.6% | 57.9% | 60.2% | 62.5% | 64.8% | 67.1% | 69.4% | 71.7% | 74% | 76.3% | 78.6% | 80.9% | 83.2% |
Defensive Assist: Hero's Entrance
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Light Defensive Daze Multiplier | 271.3% | 283.7% | 296.1% | 308.5% | 320.9% | 333.3% | 345.7% | 358.1% | 370.5% | 382.9% | 395.3% | 407.7% | 420.1% | 432.5% | 444.9% | 457.3% |
| Heavy Defensive Daze Multiplier | 342.8% | 358.4% | 374% | 389.6% | 405.2% | 420.8% | 436.4% | 452% | 467.6% | 483.2% | 498.8% | 514.4% | 530% | 545.6% | 561.2% | 576.8% |
| Chain Defensive Daze Multiplier | 166.8% | 174.4% | 182% | 189.6% | 197.2% | 204.8% | 212.4% | 220% | 227.6% | 235.2% | 242.8% | 250.4% | 258% | 265.6% | 273.2% | 280.8% |
Assist Follow Up: Villain's Exit
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 229.6% | 250.5% | 271.4% | 292.3% | 313.2% | 334.1% | 355.0% | 375.9% | 396.8% | 417.7% | 438.6% | 459.5% | 480.4% | 501.3% | 522.2% | 543.1% |
| Daze Multiplier | 203.7% | 213% | 222.3% | 231.6% | 240.9% | 250.2% | 259.5% | 268.8% | 278.1% | 287.4% | 296.7% | 306% | 315.3% | 324.6% | 333.9% | 343.2% |
Special Attack5
Special Attack: Drive Suppression
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 52% | 56.8% | 61.6% | 66.4% | 71.2% | 76% | 80.8% | 85.6% | 90.4% | 95.2% | 100% | 104.8% | 109.6% | 114.4% | 119.2% | 124% |
| Daze Multiplier | 110% | 115% | 120% | 125% | 130% | 135% | 140% | 145% | 150% | 155% | 160% | 165% | 170% | 175% | 180% | 185% |
Special Attack: Run Wild
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 72.1% | 78.7% | 85.3% | 91.9% | 98.5% | 105.1% | 111.7% | 118.3% | 124.9% | 131.5% | 138.1% | 144.7% | 151.3% | 157.9% | 164.5% | 171.1% |
| Daze Multiplier | 58.7% | 61.4% | 64.1% | 66.8% | 69.5% | 72.2% | 74.9% | 77.6% | 80.3% | 83.0% | 85.7% | 88.4% | 91.1% | 93.8% | 96.5% | 99.2% |
EX Special Attack: Cool Wheelie
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 389.7% | 425.2% | 460.7% | 496.2% | 531.7% | 567.2% | 602.7% | 638.2% | 673.7% | 709.2% | 744.7% | 780.2% | 815.6% | 851.2% | 886.7% | 922.2% |
| Daze Multiplier | 139.3% | 145.7% | 152.1% | 158.5% | 164.9% | 171.3% | 177.7% | 184.1% | 190.5% | 196.9% | 203.3% | 209.7% | 216.1% | 222.5% | 228.9% | 235.3% |
EX Special Attack: High-Traction Wheels
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 929.9% | 1014.5% | 1099.1% | 1183.7% | 1268.3% | 1352.9% | 1437.5% | 1522.1% | 1606.6% | 1691.3% | 1775.9% | 1860.5% | 1945.1% | 2029.7% | 2114.3% | 2198.9% |
| Daze Multiplier | 795.4% | 831.6% | 867.8% | 904% | 940.2% | 976.4% | 1012.6% | 1048.8% | 1085% | 1121.2% | 1157.4% | 1193.6% | 1229.8% | 1266% | 1302.2% | 1338.4% |
| Adrenaline Cost | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
EX Special Attack: Rocking Footwork
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 959% | 1046.2% | 1113.4% | 1220.6% | 1307.8% | 1395% | 1482.2% | 1569.4% | 1656.6% | 1743.8% | 1831% | 1918.2% | 2005.4% | 2092.6% | 2179.8% | 2267% |
| Daze Multiplier | 824% | 861.5% | 899% | 936.5% | 974% | 1011.5% | 1049% | 1086.5% | 1124% | 1161.5% | 1199% | 1236.5% | 1274% | 1311.5% | 1349% | 1386.5% |
| Adrenaline Cost | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
Chain Attack2
Chain Attack: Knight's Swagger
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 662.9% | 723.2% | 783.5% | 843.8% | 904.1% | 964.4% | 1024.7% | 1085% | 1145.3% | 1205.6% | 1265.9% | 1326.2% | 1386.5% | 1446.8% | 1507.1% | 1567.4% |
| Daze Multiplier | 262.2% | 274.2% | 286.2% | 298.2% | 310.2% | 322.2% | 334.2% | 346.2% | 358.2% | 370.2% | 382.2% | 394.2% | 406.1% | 418.2% | 430.2% | 442.2% |
Ultimate: Starlight Knight Flying Kick
| Lv | Lv.1 | Lv.2 | Lv.3 | Lv.4 | Lv.5 | Lv.6 | Lv.7 | Lv.8 | Lv.9 | Lv.10 | Lv.11 | Lv.12 | Lv.13 | Lv.14 | Lv.15 | Lv.16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DMG Multiplier | 1592.1% | 1736.9% | 1881.7% | 2026.5% | 2171.3% | 2316.1% | 2460.9% | 2605.7% | 2750.5% | 2895.3% | 3040.1% | 3184.9% | 3329.7% | 3474.5% | 3619.3% | 3764.1% |
| Daze Multiplier | 449.2% | 469.7% | 490.2% | 510.7% | 531.2% | 551.7% | 572.2% | 592.7% | 613.2% | 633.7% | 654.2% | 674.7% | 695.2% | 715.7% | 736.2% | 756.7% |
Core Skill1
Core Passive: Knight's Resolve
| Lv | Lv.1 | Lv.2 (A) | Lv.3 (B) | Lv.4 (C) | Lv.5 (D) | Lv.6 (E) | Lv.7 (F) |
|---|---|---|---|---|---|---|---|
| When his HP is above 25% and upon executing Special Attack: Drive Suppression, CRIT DMG increases | 45% | 53% | 60% | 68% | 75% | 83% | 90% |
| CRIT Rate increases | - | +4.8% | - | +4.8% | - | +4.8% | - |
| Base ATK increases | - | - | +25 | - | +25 | - | 25 |
Mindscapes — how far is worth it?
Core Passive: Knight's Resolve restores an additional 60 Adrenaline upon entering the battlefield. Hitting an enemy with an EX Special Attack causes Starlight - Billy's DMG to ignore 18% Physical RES for 45s. Repeated triggers refresh the duration. There are just as many bad guys in New Eridu as in a visual FX show, but there aren't many real heroes. "I might be good at shouting heroic lines, but I can't really call myself a hero yet..." "But I'll follow their example and stand up front to protect everyone!"
Increases the DMG dealt by Basic Attack: Full-Throttle Starlight, EX Special Attack: Cool Wheelie, and Ultimate: Starlight Knight Flying Kick by 50%. Activating EX Special Attack: Rocking Footwork, EX Special Attack: High-Traction Wheels, or hitting a Stunned enemy with Special Attack: Drive Suppression grants the Turbocharged effect: Special Attack: Drive Suppression consumes this effect to immediately follow up with EX Special Attack: Cool Wheelie, and increases that instance's CRIT DMG by 50%. Only 1 stack of Turbocharged can be held. There's no shortage of sharpshooters in the Outer Ring, but keeping perfect aim on a speeding bike is what defines a real ace. "Ballistic calculations and mechanical fingers? Of course they help..." "But the real reason I'm dead-on every time is because... the Starlight chose me!"
Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2 What does it really mean to be a Starlight Knight? Never backing down and standing up for the weak? Sacrifice, justice, compassion, honor? "Do what is right..." "And don't compromise on what's not cool!" "That's why I'll never abandon my companions!"
While in combat, each use of Special Attack: Drive Suppression increases Starlight - Billy's CRIT DMG by 8%, stacking up to 2 times, and lasting 45s. Repeated triggers reset the duration. If HP is below 35% and Starlight - Billy is not the active character, he continuously recovers HP, up to 35%. Ideals are born to uphold justice, yet they're destined to be abandoned. "You're saying those shows are just for kids...?" "The most courageous dreams are the ones only kids dare to believe in, right?" "Then I, Starlight - Billy, will protect those ridiculed dreams!"
Basic Attack, Dodge, Assist, Special Attack, and Chain Attack Lv. +2 You need a dazzling outfit to look like a real hero... it makes the whole thing pretty inconvenient. "I'm not strong because of larger-caliber weapons or higher-power components!" "My true weapon... is the endless starlight!"
Ultimate: Starlight Knight Flying Kick and Basic Attack: Full-Throttle Starlight's Sheer DMG increases by 18%. Landing the 4th hit of Basic Attack: Knight's Technique, EX Special Attack: Cool Wheelie, or Chain Attack: Knight's Swagger grants 1 stack of Brilliant Starlight, stacking up to 6 times, and gaining at most 1 stack per skill use. When using Ultimate: Starlight Knight Flying Kick or Basic Attack: Full-Throttle Starlight, consumes up to 2 stacks of Brilliant Starlight, with each stack consumed causing that skill's final hit to deal 100% Sheer Force as additional Physical DMG. Those who always believe in hope will, in the end, become someone else's hope. This is the story of the Starlight Knights, the story of Billy Kid. "Starlight Knight — Transformation!"
Stats & Materials by Ascension Milestone
| Lv. | Before | After | Materials for this milestone |
|---|---|---|---|
| Lv.1 | HP: - ATK: - DEF: - Sheer Force: - [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 683 ATK: 124 DEF: 36 Sheer Force: 105 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
|
| Lv.10 | HP: 1,517 ATK: 191 DEF: 79 Sheer Force: 208 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 1,986 ATK: 235 DEF: 104 Sheer Force: 268 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Denny ×24,000
Basic Rupture Certification Seal ×4
|
| Lv.20 | HP: 2,913 ATK: 309 DEF: 153 Sheer Force: 383 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 3,382 ATK: 353 DEF: 177 Sheer Force: 443 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Denny ×56,000
Advanced Rupture Certification Seal ×12
|
| Lv.30 | HP: 4,309 ATK: 428 DEF: 226 Sheer Force: 558 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 4,778 ATK: 472 DEF: 251 Sheer Force: 618 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Denny ×120,000
Advanced Rupture Certification Seal ×20
|
| Lv.40 | HP: 5,705 ATK: 546 DEF: 299 Sheer Force: 733 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 6,173 ATK: 591 DEF: 323 Sheer Force: 794 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Denny ×200,000
Arbiter Certification Seal ×10
|
| Lv.50 | HP: 7,101 ATK: 666 DEF: 372 Sheer Force: 909 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 7,570 ATK: 710 DEF: 397 Sheer Force: 969 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Denny ×400,000
Arbiter Certification Seal ×20
|
| Lv.60 | HP: - ATK: - DEF: - Sheer Force: - [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
HP: 8,497 ATK: 784 DEF: 445 Sheer Force: 1,084 [Recommended] HP, CRIT Rate & DMG, Sheer Force: - |
Total materials across the whole ascension path
Materials Needed to Lv60
Total Denny for the character alone (ascension + basic skills + core skill A→F): about 1,706,000 Denny — W-Engine and Drive Discs not included.
Official Name in Other Languages
Banner History
It's been 69 days since Starlight - Billy's banner last closed — no new rerun announced yet.
Alongside: Orphie & Magus
Voice Actors & Character Info
How to read this build page
Every Agent build page has 4 parts: a stat table by level, W-Engine/Drive Disc suggestions, a Mindscape roadmap, and recommended teams. Read them in that order — stats tell you "what you need", gear tells you "where to get it", Mindscape tells you "is it worth pulling", teams tell you "who to pair with". The section below explains how to read each part, and it applies the same way to every character on the site.
How to read the stat table and level
The stat table shows values at the ascension breakpoints (usually the final one, e.g. Lv60) — these are BASE stats with no gear added, useful for comparing Agents or checking whether you've ascended far enough. CRIT Rate and CRIT DMG are shown separately because they set the damage ceiling once Drive Disc substats stack on top. If your real stats are lower than the table, you likely haven't fully ascended or leveled yet — it's not a build mistake.
Why the W-Engine and Drive Disc picks make sense
Most Agents have a "signature" W-Engine designed for their exact role, plus a few cheaper standard-banner substitutes. Missing the signature isn't a dead end — most Agents keep most of their power with a well-matched substitute, just short by some amount of total damage.
- Drive Disc sets (2pc + 4pc) are picked for the set effect that fits that Agent's playstyle (mono-element, Anomaly, stun, and so on).
- Substats follow a priority that changes by role: Attack-type Agents usually chase CRIT Rate/CRIT DMG before ATK%; Anomaly-type Agents add Anomaly Proficiency to that mix; Stun/Support roles often value survivability or energy stats over pure CRIT.
These weights differ per character — follow the exact substat priority table above rather than applying one formula to every role.
Is Mindscape worth chasing
General rule: M0 (no duplicates) already clears the game's hardest content, even for S-rank Agents. Mindscape is a duplicate-fueled upgrade system, and each level costs more resources for a smaller power gain. For most Agents, the best value stop is usually M1–M2 (where some key effects unlock), while M6 is almost always for players chasing the absolute ceiling, not a requirement. Check the Mindscape section in the table above for that specific Agent's numbers.
Skill priority by role
There's no single order for every Agent, but the general pattern by role is:
- Attack: level the main damage skill first (Basic or Special Attack depending on kit), Dash/Dodge last.
- Stun: prioritize whichever skill builds Daze/Stun fastest, since the stun window is where the whole team dumps damage.
- Support: prioritize buff or energy-generating skills over personal damage — this role's value comes from lifting the whole team.
- Anomaly: prioritize the skill that stacks anomaly buildup, since most of the damage comes from the triggered effect, not the direct hit.
Always level the Core Skill steadily alongside the rest — it's a baseline stat that affects the whole rotation, not just one move.
Where to dig deeper
This section only teaches you how to read the page — for deeper comparisons, use the dedicated tools:
- Tier list to see where this Agent stands against the full roster.
- Teams for full in-game comps, including Bangboo and rotation order.
- Disc score to check how your current gear scores against the benchmark.
Agents of the same attribute
Starlight - Billy FAQ
What is the best W-Engine for Starlight - Billy?
Starlight - Billy performs best with Starlight Rider Faceplate. See alternatives and required stats in the Gear section above.
Is Starlight - Billy worth pulling?
Worth pulling if you like on-field Rupture burst and own Lucia — Billy converts HP into Sheer Force and ignores DEF, giving a high damage ceiling. Downsides: as a Rupture unit most ordinary buffs do NOT apply to him, so he needs dedicated Rupture supports (Lucia/Pan Yinhu) to reach full power; without the right support type he visibly falls off. This guide is still new, so numbers may be adjusted.
What is the best team for Starlight - Billy?
Starlight - Billy works best in the Standard Rupture team. Full members and rotation are in the Teams section.
Who voices Starlight - Billy in Zenless Zone Zero?
Starlight - Billy (faction Cunning Hares, birthday Nov 25) is voiced according to the official credits published on the HoYoverse Wiki. See the full English/Japanese/Korean/Chinese voice actor list in the "Voice Actors & Character Info" block above — this data is pulled directly from the official wiki, not guessed.
Which Mindscape of Starlight - Billy is worth investing in?
Starlight - Billy has 6 Mindscape tiers (M1-M6), each unlocking its own effect detailed in the "Mindscape" block above (official wording). Mindscapes cost Mindscape Cinema currency farmed from limited banners, so weigh it against your budget — F2P players usually stop at M0-M1 and prioritize W-Engine and Drive Discs before pushing Mindscape higher.
How much Denny and how many materials to level Starlight - Billy to Lv60?
Leveling Starlight - Billy to max Lv60 (ascension + basic skills to 12 + core skill A→F) costs roughly 1,706,000 Denny, plus role-specific ascension materials, attribute-specific skill chips, high-dimensional data, and weekly boss drops — see the full list with exact quantities in the "Materials Needed" block above, sourced from the game's official leveling tables.
Understand the mechanics behind this
Drive Disc Scorer→