Night Hag

{1}{b}{b}, Tap a target creature and place a soul
corrupt counter on it
{3}{r}, Remove 3 soul corrupt counter's from a
target creature, send that creature to the.
graveyard, and Night Hag gains a +1/+1 counter.
The ethereal hag fills her victim's head with doubts
and fears, in the hope of tricking it into performing evil
acts in the waking world. The hag continues her
nightly visitations until the victim finally expires in its
sleep.