Enchantment
As
this
enchantment
enters,
choose
black
or
red.
At
the
beginning
of
your
upkeep,
sacrifice
this
enchantment
unless
you
pay
.
Whenever
a
creature
of
the
chosen
color
deals
damage
to
you
or
a
white
creature
you
control,
this
enchantment
deals
that
much
damage
to
that
creature.
