Water scalpel (unfinished)

Control water to shape it into a magical scalple that can pass through skin, make a melee spell attack against a target within reach. On a hit, the target either takes 1d6 plus your spellcasting ability modifier slashing damage, and it can’t regain Hit Points until the end of your next turn. Or gains hit points equal to 1d6 plus your spellcasting ability modifier.

At higher levels: When you cast this spell using a spell slot of 2nd level or higher, the Damage and Healing increases by 1d6 for each slot level above 1st.