Smokescreen Shinobi

Ninjutsu {4}{b}{b} (Return an unblocked attacker you control to hand: Put this card onto the battlefield from
your hand tapped and attacking.)
When Smokescreen Shinobi dies, instead return
it to your hand and create a 0/1 black smoke
creature token.
Smokescreen Shinobi's ninjutsu costs
{1}{b}{b} if you return a smoke to your hand.