Vichea's Mirror Strike

You weave strands of illusory magic emanating from the Astral Realms, creating an illusory duplicate of yourself that attacks a creature you can see within range. The target must succeed on a Wisdom saving throw or take 1d6 psychic damage. If the target is under the effects of another spell that requires concentration, it takes an additional 1d6 psychic damage. The illusory duplicate shatters upon impact or dissipates if the target successfully makes the save, leaving no trace. The damage increases to 2d6 when you reach 5th level, and 3d6 when you reach 11th level.