Mind Shuffle

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During either player's turn: You can add 1 monster that mentions "Light and Darkness Ritual" from your Deck to your hand, then discard 1 card. You can only use this effect of "Mind Shuffle" once per turn. When your opponent activates a card or effect: You can return 1 Level 7 or higher monster you control to the hand; Special Summon 1 monster that mentions "Light and Darkness Ritual" from your hand, with a different name than the returned monster, ignoring its Summoning conditions. You cannot activate these effects of "Mind Shuffle" in the same Chain.