Creature — Nightmare
Mutate
(If
you
cast
this
spell
for
its
mutate
cost,
put
it
over
or
under
target
non-Human
creature
you
own.
They
mutate
into
the
creature
on
top
plus
all
abilities
from
under
it.)
Flying
Whenever
this
creature
mutates,
exile
the
top
card
of
each
opponent's
library
face
down.
You
may
look
at
and
play
those
cards
for
as
long
as
they
remain
exiled.
5 / 5
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