Void smite

The next time you hit a creature with a weapon attack before this spell ends, the weapon gleams with astral darkness. The attack deals an extra 2d6 necrotic damage to the target and it must make a Wisdom saving throw. On a failure it is teleported to a point of your choosing within 60ft. If the teleportation would place it directly in harm's way, such as a pool of lava or a pit of acid, it has advantage on the saving throw.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the extra damage increases by 1d6 for each slot level above 2nd.