Grave Shift

Whenever a creature card is exiled from a graveyard, put an entrails counter on Grave Shift.
{u}, Remove any number of entrails counters
from Grave Shift: Create an X/X blue Zombie creature token named Skaab, where X is the number of entrails counters removed this way.
"When a grave is emptied, rarely are the remnants so few they can't be of some use to me."
- Ludevic, necro-alchemist