Kaboom the Cannon
W-Engine effectStampede AccidentWhen any friendly unit in the squad attacks and hits an enemy, all squad member’s ATK increases by 2.5%/2.8%/3.2%/2.6%/4% for 8s, stacking up to 4 times. The duration of each stack is calculated separately, and each friendly unit can provide 1 stack of the buff. Passive effects of the same name do not stack.
| R1 | R2 | R3 | R4 | R5 | |
|---|---|---|---|---|---|
| 群衆事故チームにいる任意の味方ユニットの攻撃が敵に命中した時、すべての味方ユニットの攻撃力+ | 2.5 | 2.8 | 3.2 | 3.6 | 4% |
Verbatim from official game data. Refinement ONLY increases the passive effect values above — it does NOT change Base ATK or the Advanced Stat, which scale with level instead.
How to read this W-Engine page
Every W-Engine has 5 Refinement ranks (R1→R5): refinement ONLY strengthens the passive effect — the numbers in the table above run from left (R1, unrefined) to right (R5, max refinement via 4 duplicates or Overclock materials); Base ATK and the Advanced Stat (CRIT Rate/CRIT DMG/ATK%/PEN Ratio/Anomaly Proficiency...) do NOT change with refinement, only with the engine's level. "Best Agents for this W-Engine" prioritizes agents whose real build actually recommends this engine; if that data isn't available yet, the page falls back to agents sharing the same specialty as a rough guide. "Alternatives of the same specialty" lists other W-Engines with the same role — useful when you don't own the engine shown on this page.
Understand the mechanics behind this
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