During either player's turn: You can banish 1 random face-down monster from your opponent's Extra Deck, and if you do, this card's ATK becomes the banished monster's. During either player's turn: You can detach 1 Xyz Material from this card, then target 1 of your opponent's banished Fusion, Synchro, or Xyz Monsters; return it to the Extra Deck, and if you do, destroy 1 monster your opponent controls of the same monster card Type (Fusion, Synchro, or Xyz). You can only use each effect of "Magic Sea Castle Agaion" once per turn.