Yaxun's Draining MIst
4th-level necromancy
Casting Time 1 action
Components V, S, M (a leech)
Range Self (15-foot-radius sphere)
Duration instantaneous
You surround yourself with a sinister red mist that drains the life from your foes and feeds it to you. Each target takes 4d8 necrotic damage unless it succeeds on a Constitution save. You gain temporary hit points equal to 5 times the number of targets that take damage from this spell (maximum 25 temporary hit points).
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 and the temporary hit points increase by 1 per target for each slot above 4th.