User:Guy/Splat/Spells/Sacrificial Power

Sacrificial Power

Necromancy (necrotic) cantrip
Casting time:	bonus action
Range:	self
Components:	S
Duration:	1 round

Blood or other viscera gush from your body in sacrifice to an eldritch force, and you take 1d10 necrotic damage. Once before the start of your next turn, the first time a creature loses or regains hit points from a spell you've cast, the number increases by an amount equal to the necrotic damage you took. If the spell affects several creatures at once, you decide which one is affected.

Once you cast this spell, you must regain hit points before you can cast it again.