Enchantment
At
the
beginning
of
your
end
step,
you
may
sacrifice
a
creature.
If
you
do,
look
at
the
top
X
cards
of
your
library,
where
X
is
that
creature's
mana
value.
You
may
put
a
creature
card
from
among
them
onto
the
battlefield.
Put
the
rest
on
the
bottom
of
your
library
in
a
random
order.
