Saki, the Dream Moon

Ninjutsu {2}{u}{b} ({2}{u}{b} Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
{t}: Until the end of turn you can cast a creature card from your hand as though it had ninjutsu {x} ({x} Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Where X is half of the card converted mana cost rounded up.