Krovmir Assassin

Painborn (Each 1 life you pay while casting this spell
pays for {1}. This creature enters the battlefield with a
-1/-1 counter on it for each 1 life paid this way.)
Deathtouch
{t}: Destroy target creature with power greater
than or equal to your life total.
"This is the closest I have seen to Krovmiri honor."
-- Bjeldor Haerkenlaer.