Increases Isaac's damage whenever he takes damage, up to six times. The bonus resets when entering a new floor.

Damage increases as Isaac receives damage. The damage increase stays for the whole floor but resets upon entering a new floor.

Damage is increased by flat amounts: +0.5 for the first hit and an additional +0.2 for each hit, until +1.5 at the sixth. The maximum total is +6.0.

Any damage taken past the sixth hit does not further increase damage.

Isaac becomes redder as his damage increases.

Birthright - Samson's Birthright allows him to gain 4 more damage boosts at the same +0.2 intervals, for a new maximum total of +14.0.

Dull Razor - Safely provides the damage boost without needing to take damage.

Tier

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