Lisa Sherwood, the Hag

Swampwalk
{2}{b}, {t}: Create a 0/1 black Phantasm Trap
creature token.
Whenever a Phantasm Trap you control dies
while Lisa Sherwood is in your graveyard, you
may pay {b}. If you do, return Lisa Sherwood
from your graveyard to the battlefield.
With her dying breath, she etched the symbols they
had taught her... a dark hunger stirred inside her. It yearned for blood.