Todesser’s Terrible Siphoning

You point to any area you can see in range. From that point expands a black 20-foot-diameter  sphere engulfing all creatures within it.  The sphere then pops and a shower of bright green energy rushes to an individual of your choice.  The creature in the sphere must make a Wisdom saving throw and takes 6d8 necrotic damage on a failed save, or half as much damage on a successful one. On a failed save, half of the damage taken is given as healing to a willing recipient of your choice.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.