Target 1 "Libromancer" monster you control and 1 monster your opponent controls; return your monster to the hand, and if you do, take control of that opponent's monster. If your "Libromancer" monster you targeted was not a Ritual Monster, the monster you took control of returns to the hand during the End Phase. You can only activate 1 "Libromancer Displaced" per turn.
Trap
Normal
