Ethereal Smite

The next time you hit with a weapon attack before this spell ends, the weapon draws wisps of energy from the Border Ethereal as you strike. The attack deals an extra 4d6 force damage to the target, and you vanish from your current plane of existence and appear in the Ethereal Plane. (The spell instead ends immediately after the attack if you were already on that plane.) When the spell ends, you return to an unoccupied space of your choice that you can see within 10 feet of the space you vanished from. If no unoccupied space is available within that range, you appear in the nearest unoccupied space (chosen at random if more than one space is equally near). While on the Ethereal Plane, you can see and hear the plane you originated from, which is cast in shades of gray, and you can’t see anything there more than 60 feet away. You can only affect and be affected by other creatures on the Ethereal Plane. Creatures that aren’t there can’t perceive you or interact with you, unless they have the ability to do so.