Ghuleh, The Zombie Queen

Delve (Each card you exile from your graveyard
while casting this spell pays for {1}.)
At the beginning of your endstep, you may exile
a card from your graveyard, if you do, create a
2/2 black zombie creature token.
Whenever a zombie you control dies, look at the
top 2 cards of your library, put one into your
hand and the other into your graveyard.
"Black light guides you..."