Zed, Blade from the Grave

Ninjutsu {2}{b} ({2}{b}, Return an unblocked attacker
you control to hand: Put this card onto the battlefield
from your hand tapped and attacking.)
When Zed, Blade from the Grave enters the
battlefield, each player sacrifices a creature.
{1}, Sacrifice a permanent: Until end of turn, you
may activate Zed's ninjutsu ability from your
graveyard.