Ninja Strike # (Whenever one of your opponent's creatures attacks or blocks, if you have # or more cards in your mana zone and if during that attack you didn't use a "Ninja Strike" ability, you may summon this Shinobi for no cost. At the end of that turn, put this Shinobi on the bottom of your deck.)
The mana cost of the Ninja Strike ability varies by creatures.
■ When you put this creature into the battle zone, search your deck. You may choose up to 3 Shinobi from your deck and show them to your opponent. Put one of those into your hand without showing your opponent and shuffle the rest into your deck.
Denjara Switch—At the end of your opponent's turn, if there are 8 or more Shinobis under this D2 Field, you may turn this D2 Field upside down for the rest of the game. If you do, each player shuffles all their cards in the battle zone and shield zone into their deck.