Artifact
Whenever
a
player
casts
an
instant
or
sorcery
spell,
exile
it
instead
of
putting
it
into
a
graveyard
as
it
resolves.
,
,
Sacrifice
this
artifact:
You
may
cast
any
number
of
spells
from
among
cards
exiled
with
this
artifact
with
total
mana
value
X
or
less
without
paying
their
mana
costs.
