Steel Fighters
Tier AChecked 2026-10-22 · 3 sources

Fusion Master title

Steel Fighters · +18% Arena Damage

Do 30 robot fusions for +18% Arena Damage. Fusion costs robots, so this is the title that turns spare builds into a permanent damage buff.

TierA
Buff+18% Arena Damage
RequirementDo 30 robot fusions.

Fusion eats robots. That makes this expensive early on and nearly free later, when your storage is full of robots you built for the Master Builder counter and no longer use.

Order it after Master Builder: builds count towards Master Builder, failed experiments get fused, and both titles come out of the same pile of parts.

The buff itself (+18% Arena Damage) is the same as Engineer's, so pick whichever arrives first - you cannot use two Arena Damage titles at once.

See where it sits on the tier list, or start from the beginner guide if you are still working out the loop.

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