Instant
X
can't
be
0.
Target
spell's
controller
exiles
it
with
X
delay
counters
on
it.
At
the
beginning
of
each
of
that
player's
upkeeps,
if
that
card
is
exiled,
remove
a
delay
counter
from
it.
If
the
card
has
no
delay
counters
on
it,
the
player
puts
it
onto
the
stack
as
a
copy
of
the
original
spell.
