Creature — Dragon Horror
Flying
At
the
beginning
of
your
end
step,
exile
the
top
card
of
each
opponent's
library.
You
may
play
those
cards
for
as
long
as
they
remain
exiled.
If
you
cast
a
spell
this
way,
you
may
spend
mana
as
though
it
were
mana
of
any
color
to
cast
it.
Whenever
a
nonland
permanent
an
opponent
owns
enters
the
battlefield
under
your
control,
they
lose
life
equal
to
its
mana
value.
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