Drive Discs

Each agent equips up to 6 Drive Discs, numbered slot 1 through 6. Equip 2 discs from the SAME set to unlock its 2-piece effect (usually a base stat buff); equip 4 discs from the same set to also unlock its 4-piece effect (usually a stronger, condition-based mechanic). Since you only have 6 slots, there are exactly two valid splits: three different sets at 2 pieces each, or one main set at 4 pieces plus a secondary set at 2 pieces.

Most DPS builds go 4+2: four pieces of the main set for the big effect, and two leftover pieces picked for whatever base stat needs filling out (usually PEN Ratio or an elemental stat). Support or defense builds sometimes prefer three 2-piece sets instead, since the goal there is stacking several small base buffs rather than one big 4-piece payoff.

The first three slots always carry a fixed flat main stat, no choice involved: slot 1 is flat HP, slot 2 is flat ATK, slot 3 is flat DEF. The remaining three slots are where you actually decide the build:

• Slot 4: pick among base percentages (HP%, ATK%, DEF%) or Crit Rate, Crit DMG, Anomaly Proficiency.
• Slot 5: adds elemental damage options (Fire/Ice/Electric/Ether/Physical/Frost DMG) or PEN Ratio, alongside the base percentages.
• Slot 6: adds Anomaly Proficiency, Energy Regen, or Impact, on top of the options above.

Quick rule: standard crit DPS want Crit Rate, Crit DMG or elemental damage across slots 4-5-6; Anomaly teams want Anomaly Proficiency; Stun-role agents want Impact in slot 6 to build Daze faster.

Each disc holds up to 4 sub-stats, none duplicating the main stat it already carries, and each roll lands within a set range (community-reported, not fully cross-verified: a flat ATK roll is roughly 19 points, Crit Rate roughly 2.4%, Crit DMG roughly 4.8% — always close to double Crit Rate). General priority: Crit Rate and Crit DMG for standard DPS, PEN% or Anomaly Proficiency for Anomaly teams, Impact for Stun-role agents.

With only 6 slots, upgrade checkpoints (+3/+6/+9) should follow role priority so you don't waste resources: Attack-role agents push slots 2-4-5-6 first (skip 1 and 3, which are just flat HP); Anomaly-role agents push slot 4 first since that's where Anomaly Proficiency appears; Stun-role agents push slot 6 first so Impact climbs fastest, opening the stun window sooner for the whole team.

Every set has its own fixed 2-piece and 4-piece text, but its actual value depends on the role of the agent wearing it, not just the set's name:

• Attack (standard/crit DPS): look for a 4-piece that directly adds Crit DMG or boosts damage from a specific attack type (Basic/Dodge/Skill) while an elemental buff is active.
• Anomaly: look for a set that adds Anomaly Proficiency at 2 pieces and reduces enemy Anomaly RES at 4 pieces — the pair amplifies each other strongly.
• Stun: prioritize a set that directly boosts Impact or Daze gain on Basic/Dodge hits, opening the Chain Attack window faster for the team.
• Support: pick a set that restores Energy or buffs the whole team on Chain/Ultimate — a Support's value is feeding the combo, not personal damage.
• Defense: prioritize a set that boosts Daze on defensive hits or buffs the team's defense, matching the tanking role.

Since every 4-piece effect has its own trigger condition, read the description in the table above carefully before committing — a great set on one character can be dead weight on another if the trigger doesn't match its playstyle.

Drive Discs drop in pairs from Routine Cleanup — each stage typically drops one fixed pair of sets, so target the stage that drops what you actually need instead of grinding at random. There are three milestones worth remembering as you build: at lower ranks you already pick up S-rank discs occasionally through quests and chests; higher up you're guaranteed two S-rank discs each time you clear a hard stage; and later, once you unlock Legendary Proxy, higher-tier stages get an extra boost to rare-disc drop rate. These three milestones don't contradict each other — they simply unlock three separate mechanics (choosing via tuning, direct drops, boosted rate) in sequence.

Energy for entering stages has a fixed cap and regens in real time; the city's coffee shop also grants an instant Energy top-up plus a same-day double-drop buff, worth timing to speed up farming without spending extra Energy. Don't chase a perfect build too early — focus your Energy on stages that drop the exact sets you need first, instead of grinding scattershot before you've settled on a main team.