Taki, the Silent Assassin

Ninjutsu {u}{u}{u} ({u}{u}{u}, Return an unblocked attacker you control to hand: Put this card on to the battlefield from your hand tapped and attacking.)
Deathtouch
If a Ninja creature was returned your hand
for Taki, the Silent Assassin's Ninjutsu effect
you may search you library for a Ninja creature
and add it to your hand, then shuffle your library.