Poseidon, the Great Emperor God of Oceans (2-041) [The War of Valhalla]

Resonator : Deity [Continuous] At the end of turn, destroy all resonators in your field that are not named "Poseidon, the Great Emperor God of Oceans", then discard two card from your hand. [Activate] Banish four cards in your lifebreak area : Return all resonators in your opponent's field to the bottom of his or her main deck. [Activate] Pay U3 : Rest all resonators that are not named "Poseidon, the Great Emperor God of Oceans'".