Legendary Artifact
You
may
look
at
the
top
card
of
your
library
any
time.
You
may
play
lands
and
cast
spells
from
the
top
of
your
library.
If
you
cast
a
spell
this
way,
pay
life
equal
to
its
mana
value
rather
than
pay
its
mana
cost.
,
Sacrifice
ten
nonland
permanents:
Each
opponent
loses
10
life.
