Shredder, Unrelenting [TMT - 74] Printing:Normal Sacrifice a creature: Regenerate Dimir

Sacrifice a creature: Regenerate Dimir House Guard

but then he will knock four times

Flavor: The daredevil racers of the Derby Crows

and put it into your hand

Operation Double

Shredder, Unrelenting [TMT - 74] Printing:Normal Sacrifice a creature: Regenerate DimirRarity: U #: 74 Creature Type or Sub Type: Legendary Creature Human Ninja P: 6 T: 4 Rules Text Contains: Sneak 3B (You may cast this spell for 3B if you also return an unblocked attacker you control to hand during the declare blockers step. He enters tapped and attacking.) Deathtouch Whenever Shredder enters or attacks, another target creature you control gains deathtouch until end of turn.