Abyss Sword

You create a sword out of what appears to be thin air, which looks to all other creatures as a gleaming black sword which flashes across the room, like a spiritual weapon. You can make it fly to any point in a 80x80 foot square and attack with it as your bonus action. However, when a creature sees this move, it has to make a Wisdom saving throw against your Spellsave DC. If it fails, it is compelled to move 5ft towards the sword. When it successfully hits an attack, the hit creature will be thrown into a painful flashback (Provided it has memories) and have to make a Wisdom saving throw. Upon failure, it attacks itself with its own weapon. Upon success, deal damage equal to Xd4 (X being your level in the class that you use to cast this spell) Necrotic damage.