Release the Beast

 is a tier 6 skill in Krieg's Mania skill tree. Activating his action skill while at critical condition (e.g. when the "!" indicator pops up for your health) causes Krieg to turn into a severely mutated creature called a Badass Psycho Mutant.

Effects

 * All of Krieg's health is instantly refilled upon activation of Release the Beast.
 * +100% melee damage, +50% damage reduction.
 * Krieg is invulnerable to damage while transforming into the Badass Psycho Mutant.