Instant
As
an
additional
cost
to
cast
this
spell,
you
may
exile
any
number
of
black
cards
from
your
hand.
This
spell
costs
less
to
cast
for
each
card
exiled
this
way.
March
of
Wretched
Sorrow
deals
X
damage
to
target
creature
or
planeswalker
and
you
gain
X
life.
