Touched by Hadar

You summon the the will of Hadar, The Dark Hunger. A black tentacle appears to extend from your hand and latches onto the head of your target, leeching it's psychic energy and feeding the elder god, and incapacitating them in the process as it transfers and tortures their consciousness in another plane. 

This does 2d8 psychic damage and causes the incapacitated status on a failed saving throw for the rest of the round and half damage on a successful throw with no status effect.