A true demon

If you contol Stolas Goetia prince of hell until
end of turn Stolas Goetia prince of hell
gets +x,-2 and gains unblockable till end of turn.
( x is equal to the amount of moon counters on a grimoire token)
If Stolas Goetia prince of hell dies this turn
remove all moon counters on all grimoire tokens
and return Stolas Goetia prince of hell to the battlefield