■ Whenever you put a creature , put the top card of your deck into your mana zone . (Whenever another D2 Field is put into the battle zone , put this D2 Field into your graveyard .) Denjara Switch —At the start of your turn , you may turn this D2 Field upside down for the rest of the game . If you do, choose a creature that costs the same as or less than the number of cards in your mana zone and put it from your mana zone into the battle zone .