Form of Spirits

* and X are both equal to the number of Ghoul counters on Form of Spirits.
Afterlife X
Whenever a creature dies, put a Ghoul counter
on Form of Spirits.
{p/b}: Put 4 Ghoul counters on Form of Spirits.
Whenever Form of Spirits takes damage, instead
remove that number of Ghoul counters from
Form of Spirits. If you cannot, exile Form of
Spirits.