* Ninja Strike 4
(Whenever one of your opponent's creatures attacks or blocks, if you have 4 or more cards in your mana zone and if during that attack you did not use a "Ninja Strike" ability, you may summon this Shinobi without paying its cost. At the end of that turn, put this Shinobi at the bottom of your deck.)
* When you put this creature into the battle zone, choose 1 of your opponent's creatures. That creature gets -2000 power until the end of the turn.
(A creature with power 0 or less is destroyed.)