Grimoire of the Dark Lady

Grimoire of the Dark Lady enters the battlefield
with X Lore Counters on it. Wizard-, Witch- and Warlockspells cost {x}+{1} less to cast, where {x} is the number of Lore Counters on Grimoire
of the Dark Lady.
All creatures you control get +1/+1 and gain "{1}{w/b}{w/b}{w/b}: Exile this creature, return it to the battlefield under your control at the beginning of
your next end step"