Slam (Undead Form Only)

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage plus 7 (2d6) necrotic damage.

Withering Touch (Void Ghost Form Only)

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 8 (2d6 + 1) necrotic damage.