Void Soul Link

Make a melee spell attack against a creature within your reach. On a hit, you intertwine the essence of you and the creature. Any damage taken by you is taken by the creature and any damage taken by the creature is taken by you; albeit halved instead of the damage being full. The transfer of damage in this way does not provoke a concentration check. While your essence is intertwined with the target of this spell, you use your action to siphon the creature's essence. The creature must make a Constitution saving throw or take 2d12 force damage. Instead of taking the damage, you gain hit points equal to the damage dealt, rounded up. If you and the target creature move more than 60ft apart, the link is severed.

At Higher Levels. You can apply this effect to more than one enemy per higher spell slot used and the damage die increases by 1d12.