Avertas

You swap places with a target creature. The target creature makes a Wisdom saving throw. On a failed save, the swap succeeds. On a successful save, the spell fails.

Alternatively, if you're the target of an attack and the saving throw fails, the attacker's attack hits the creature you swapped with. If you target your attacker, it only takes damage if it can be hit with its own attack (e.g., firebolt, lightning bolt). If the attack does psychic damage, you still take the damage.

After the swap, you and the target occupy each other's space. If a space is occupied, the creature or object there moves to the nearest unoccupied space.