Okubo Shinobi Gang

Ninjutsu {4}{u}{u} ({4}{u}{u}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
When Okubo Shinobi Gang enters the battlefield, create two 2/2 blue Ninja creature tokens. If Okubo Shinobi Gang's Ninjutsu cost was paid, those creatures enter the battlefield tapped and attacking.
"Where once were none, suddenly are many."