Enchantment — Aura
Enchant
creature
When
this
Aura
enters,
tap
enchanted
creature
and
put
X
sleep
counters
on
it.
Enchanted
creature
doesn't
untap
during
its
controller's
untap
step
if
it
has
a
sleep
counter
on
it.
At
the
beginning
of
the
upkeep
of
enchanted
creature's
controller,
remove
a
sleep
counter
from
that
creature.
