Wright's Touch (3.5e Sacrifice)
From D&D Wiki
With a successful melee touch attack, you drain your opponent of their life force, dealing 1d4 negative levels with no saving throw. For each negative level you bestow, you gain a +1 profane bonus to attack, damage, and saving throws. Bonuses overlap, they do not stack, and last for 1 encounter, or 1 minute when out of combat.
Health Cost: -7.