Shredder, Unrelenting (TMT-074) - Teenage Mutant Ninja Turtles

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.