Tainted Sneak Attack

Feats

Whenever the Lich lands a successful sneak attack, the enemy must succeed at a Fortitude saving throw (DC = 10 + Intelligence modifier + mythic rank) or become tainted. A tainted creature is vulnerable to all weapon and elemental damage and suffers a –2 penalty on all attack rolls and weapon damage rolls until the end of combat. Additionally, the Lich's sneak attack damage is increased by 1d6.