Instant
Tap
target
untapped
creature
you
control.
If
you
do,
it
deals
damage
equal
to
its
power
to
target
attacking
or
blocking
creature
an
opponent
controls.
Flashback—
,
Pay
3
life.
(You
may
cast
this
card
from
your
graveyard
for
its
flashback
cost.
Then
exile
it.)
