Quest for the Eldritch Abbey

Whenever a creature is put into a
graveyard or leaves a graveyard, put
a quest counter on Quest for the Eldritch
Abbey.
Remove 3 quest counters from Quest
for the Eldritch Abbey and sacrifice it:
return target creature from your graveyard
to the battlefield with X +1/+1 counters on it,
where X is the number of creature cards
in all graveyards.