This transmutation makes a weapon strike true against foes. The weapon in your primary hand is treated as a magic weapon for the purpose of overcoming DR. The weapon also becomes evil-aligned, which means it can overcome the DR of certain good creatures. In addition, all critical threats against foes automatically confirm, so every threat is a critical hit.
Blackguard 1
b8e17acce1f863642bdd20fec8b8932e
CorruptWeaponCast