■ Strike Back : Darkness (When a darkness card is put into your hand from your shield zone , you may discard that card . If you do, cast this spell for no cost .)

■ Choose one of your opponent 's creatures and they put a seal on it. (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 .)