■ Whenever one of your creatures would leave , put a seal on that creature instead . (To seal a card , put the top card of your deck on top of that card face down . Whenever a Command is put, its owner puts a seal from one of their cards that has the same civilization as that Command into their graveyard . Sealed creatures are ignored .) (Whenever another D2 Field is put, 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, you may put up to 6 seals into your graveyard .