Oroku Saki, The Shredder

Deathtouch, Shadow, Shroud
Commander ninjutsu {1}{b}{b}
Creatures with Shadow can be blocked by ninjas.
Whenever Oroku Saki, The Shredder enters the battlefield you may pay {1}{u}{r}{g}; create two 3/3
green mutant beast tokens with riot and trample.
Whenever Oroku Saki, The Shredder attacks
create two 1/1 black ninjas with shadow.
"I will get those turtles!"