Last updated: 30/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
Band of Sizzling Thunder
Grants 10% Lightning DMG plus a 20% ATK boost for 1 turn after using Skill, making it a solid but modest option for Lightning-element DPS who spam Skill rather than a best-in-slot pick.
Data last updated: 2026-07-30
Band of Sizzling Thunder is a Cavern Relics (4-pc) relic set. Best paired with Kafka.
Increases Lightning DMG by 10%.
When the wearer uses their Skill, increases the wearer's ATK by 20% for 1 turn(s).
Trivia — Verified From Game Data
2-Piece (verified from data-mine)
Lightning DMG +10%
Characters Who Use This Set
2-piece or 4-piece?
Based on current data, 2 pieces are enough — no character is recorded as needing the full 4-piece bonus of this set, so you can mix it with another set on the remaining slots.
Priority substats
Derived from the recommended substats of characters currently using this set (Arlan):
CRIT (Rate/DMG) > ATK% > SPD > Flat ATK
Relic stats
Main stats are not random: at max level you always get exactly this number.
- HP705
- ATK352
- HP43.2%
- ATK43.2%
- DEF54%
- CRIT Rate32.4%
- CRIT DMG64.8%
- Outgoing Healing Boost34.5%
- Effect Hit Rate43.2%
- HP43.2%
- ATK43.2%
- DEF54%
- SPD25
Sub-stats — value of one roll (5★)
Every +3 levels grants one roll, landing randomly on one of the three values below. These are the true values added to your stats; the in-game panel shows them rounded down.
| Stat | Low | Mid | High |
|---|---|---|---|
| HP | 33.9 | 38.1 | 42.3 |
| ATK | 16.9 | 19.1 | 21.2 |
| DEF | 16.9 | 19.1 | 21.2 |
| HP | 3.5% | 3.9% | 4.3% |
| ATK | 3.5% | 3.9% | 4.3% |
| DEF | 4.3% | 4.9% | 5.4% |
| SPD | 2 | 2.3 | 2.6 |
| CRIT Rate | 2.6% | 2.9% | 3.2% |
| CRIT DMG | 5.2% | 5.8% | 6.5% |
| Effect Hit Rate | 3.5% | 3.9% | 4.3% |
| Effect RES | 3.5% | 3.9% | 4.3% |
| Break Effect | 5.2% | 5.8% | 6.5% |
What main stat to run, by role
| Body | Feet | Planar Sphere | Link Rope | Sub-stat priority | |
|---|---|---|---|---|---|
| Main DPS | CRIT Rate or CRIT DMG | ATK% or SPD | the character's own Elemental DMG Boost | ATK% (or Break Effect for a break-focused kit) | CRIT comes first — aim for roughly a 1:2 ratio of CRIT Rate to CRIT DMG — then ATK%, then SPD. |
| Healer | HP% or Outgoing Healing Boost | HP% | HP% | Energy Regeneration Rate or HP% | HP% first, then SPD — healing output scales off the target's Max HP. |
| Tank / Shielder | DEF% or Effect Hit Rate | DEF% or SPD | DEF% | DEF% or Energy Regeneration Rate | DEF% first, then Effect Hit Rate, then SPD. |
| Support | No safe default — depends on the character's kit, check that character's page | SPD, almost always correct | No safe default — depends on the character's kit, check that character's page | Energy Regeneration Rate | SPD first; add Effect Hit Rate if the character applies debuffs. |
This is a default framework, not a hard rule. Some characters break from it because of their own kit — for example a support that needs CRIT DMG or Break Effect instead of Energy Regeneration Rate. Always check that character's page before locking in a set.
Basic rules you need before picking Relics
- Head always rolls flat HP, Hands always roll flat ATK — no need to check the main stat on these two, just look at the substats.
- Only Feet can roll SPD as a main stat; only the Link Rope can roll Energy Regeneration Rate as a main stat.
- A substat never duplicates that piece's own main stat, and the four substats never duplicate each other.
- Each piece caps at 4 substats. Every +3 upgrade grants one roll — either unlocking a new substat line or boosting an existing one at random.
- Enhancement cap by rarity: 2-star +6, 3-star +9, 4-star +12, 5-star +15. Starting substat count: 3-star 1–2 lines, 4-star 2–3 lines, 5-star 3–4 lines.
- The main stat is NOT random — at the level cap it's always the exact same fixed number. Only substats roll randomly.
- Quick filter trick: enhance to +9 and you already see enough substat quality to decide keep-or-salvage — don't burn all your resources to +15 before judging.
Should you keep or salvage this piece?
- Wrong main stat for the slot (e.g. an HP% Sphere on a Lightning DPS) → salvage it right away, don't get attached.
- Right main stat but the 4 substats don't have even one line of CRIT Rate / CRIT DMG / SPD (for a DPS role) → low value, salvage first.
- Right main stat plus at least 2 substats you actually need from the start → enhance to +9 and reassess — this piece is worth investing in.
Where can you get Relics?
- Cavern of Corrosion — the main source of the 4 Cavern Relic pieces, with 6 difficulty tiers tied to your account's Equilibrium Level; the higher your Equilibrium Level, the thicker the 5-star drop rate.
- Simulated Universe — source of the 2 Planar Ornament pieces, only unlocked from World 3 onward.
- Divergent Universe — a second source for Planar Ornaments, separate from the Simulated Universe.
- Operation Briefing — clearing these objectives also pays out Relics and related materials.
- In-game shops — some vendors sell full 4-piece sets directly for in-game currency.
- Treasure chests scattered across the main story maps.
- Story quest rewards, plus milestone rewards for leveling up your Trailblaze Level.
Relics unlock during the Belobog story arc. To target the exact set and slot you need instead of farming blind, use the Omni-Synthesizer: it runs on Relic Remains, which you get by salvaging Relics you don't use. The machine unlocks from Equilibrium Level 3 onward.
Every piece & its lore
Band's Polarized SunglassesHead
Band's Polarized SunglassesA pair of classic sunglasses worn by one of the lead singers, Janis, whose chrome lenses reflect a blue hue.
Faced with a future of no escape, the elites took away hope, feigning ignorance to cries of desperation.
Janis' parents paid a massive amount of credits to board the ship, helplessly praying for an interstellar salvation. The explosion of the red giant would destroy the planet, and it would collapse into a white dwarf... Before the arrival of the imminent doom, escape was the only option. Janis, the Doctor of Chaos, however, decided to try her best to face the annihilation of her home system head-on, attempting to prove that the existence of her home would never perish.
As the dying sun burnt brighter, Janis took her mother's sunglasses and returned to the home planet with like-minded youngsters.
"Only cowards flee while shouting the name of the redeemer." Cited from "Cheap Salvation," the hit of Sizzling Thunder's first album, Janis reworded her angry words during a dispute with her parents into lyrics.
Band's Touring BraceletHands
Band's Touring BraceletBassist Sid's bracelet, woven from silk wristbands from tours. Several lines of lyrics are written on it.
Marking the beginning of their concert tour were the dazzling sparkles of electrifying thunder when Daeve the rhythm guitarist fiercely struck chords, which coincidentally was also worshiped by hordes of their music fans as the only light in their lives.
In every concert tour the band had, there would be fans keeping order voluntarily and handing out wristbands to everyone upon entering the concert grounds. Most of these fans could not afford the costly fees for an escape, so accepting their fate and waiting for the electromagnetic burst to arrive was their only option. Ever since witnessing the return of these rebellious youths to the planet, they had felt it in their bones that their souls were ignited at this very moment. Onto these wristbands they wrote their lyrics, their showtime, as well as the band's unvoiced scream.
Sid the bassist collected the wristbands for every tour. His girlfriend wove them into a bracelet, which Sid then wore all the time.
"There's no meaning, no direction, nowhere else to go, and no future for us." From "Our Way," a single from Sizzling Thunder's second album, and Sid's life credo.
Band's Leather Jacket With StudsBody
Band's Leather Jacket With StudsDavid, one of the band's lead singers, drew a white star on the back of this leather jacket and made it the cover of the band's final album.
Lead guitarist Jimmy brought the band underground. There they sang about the tragedy of planetary destruction, which echoed throughout the entire universe.
David printed the back of his leather jacket with a white star, or, more accurately, the white dwarf their star would become after the collapse. This would be their star's proof of existence. Those who left the planetary system and those who stayed behind all listened to that thunder-like rock 'n' roll and brandished the same striking symbol.
Despite ceasing to exist, their presence had been remixed into the music and carved into eternity.
"We'll burn with our life, 'cause the white star needs a spark to ignite." From "White Star," a single from Sizzling Thunder's final album of the same name. David wrote both the lyrics and the music.
Band's Ankle Boots With RivetsFeet
Band's Ankle Boots With RivetsDrummer Bonham's ankle boots, the dark leather surface glued with rivets reflecting the stage lights.
Desolation and despair were all that lay on the surface of the doomed planet. In the era of scarce resources, the band made all their albums out of discarded X-ray films.
Before the long night of Emerald-III, the temperature on the planet's surface had plunged. The once unbearable air cooled down quite a bit as people walked out of their underground shelter and set out for the place where the band was putting on a show. At the final concert of their "Thunderclap" tour, the restless air filled with the warning signs of electromagnetic storms, and lightning was conducted through the metal scaffolding to the stage. Sparks leaped under Bonham's boots. The entire band merged with thunder and lightning. After the encore, a huge ball of lightning engulfed the stage and announced the end of Sizzling Thunder's show.
After the night of their twilight show, Sizzling Thunder came to a permanent end, just like in their lyrics.
"Thunderclaps drown out our voice, lightning runs through our veins. We'll perish with our music and our star." From "Song of Sizzling Thunder," a single from Sizzling Thunder's final album, Bonham's masterpiece.
FAQ
How many pieces of Band of Sizzling Thunder do I need for the bonus?
Band of Sizzling Thunder has separate 2-piece and 4-piece effects — see the effect table above to compare.
Which characters should use Band of Sizzling Thunder?
Characters that fit Band of Sizzling Thunder: Kafka, Jing Yuan, Acheron, Arlan, Serval.
Is Band of Sizzling Thunder a Relic Set or a Planar Ornament?
Band of Sizzling Thunder is a Relic Set (cavern) — 4 pieces (Head/Hands/Body/Feet), with separate 2-piece and 4-piece bonuses.
Where do I farm Band of Sizzling Thunder?
Band of Sizzling Thunder farming location: Cavern of Corrosion: Path of Holy Hymn.
How to read this relic set page
Cavern Relics have 4 pieces: Head and Hand always carry fixed flat stats (HP and ATK), so only Body and Feet have a random main-stat you actually choose. The 2-piece effect unlocks with 2 out of 4 pieces from the same set; the 4-piece effect is stronger but needs all 4 and usually has its own trigger condition — read the exact text above before committing. Planar Ornaments only have 2 pieces (Planar Sphere + Link Rope) and only ever have one 2-piece effect, there is no 4-piece version.
The two types also differ in where you get them: Cavern Relics drop from the Cavern of Corrosion and cost Trailblaze Power per run; Planar Ornaments come from the Simulated Universe or Divergent Universe, which do NOT cost Trailblaze Power — you trade for them with items or completion rewards instead. A full loadout usually combines one 4-piece Cavern set (or two different Cavern sets at 2 pieces each) with one 2-piece Planar set — go 4-piece when that set gives a large, reliable damage buff, and mix 2+2 when you need to stack several smaller stats (e.g. ATK% from one set plus Elemental DMG% from another).
The "who should use this" list is pulled from cross-sourced build consensus and updates automatically as the meta shifts, it is not hand-picked. See the full set table on the Relics page, or check terms in the HSR Glossary.
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