Strange Anatomy

Extraordinary

Level2

Using complex chemical concoctions, you have altered your own physiology. When an enemy scores a critical hit against you, reduce the amount of damage dealt by a number equal to your key ability score modifier. This does not prevent you from taking critical hit effects. At 6th level, reduce the damage from critical hits by twice your key ability score modifier. At 12th level, you reduce it by three times your key ability score modifier, and at 18th level, you reduce it by four times your key ability score modifier.