Enchantment
Whenever
you
cast
a
spell
from
your
hand,
reveal
the
top
X
cards
of
your
library,
where
X
is
that
spell's
mana
value.
You
may
cast
a
spell
with
mana
value
X
or
less
from
among
cards
revealed
this
way
without
paying
its
mana
cost.
Put
the
rest
on
the
bottom
of
your
library
in
a
random
order.
