Deathmaster Snikch

Flash, deathtouch
Chief Assassin {6}: Target player loses 3 life and
you gain 3 life.
Deathmaster {x}{b}{b}: Target creature gets -0/-X
until end of turn and Deathmaster Snikch gets
+X/+0 until end of turn.
"You owe your fur to the Nightlord!..."