Forsburn, The Exiled Flame

{b}: Target creature gains a smoke counter.
Every turn create a smoke counter, then put that
smoke counter on target creature. At 1 smoke
counter that creature gains shadow, at 2 smoke
counters that creature gains shroud, at 3 smoke
counters gets {0}: Sacrifice all the smoke counters on
this creature, this creature gains a +3/+1 until end
of turn. You may remove the affects of a smoke
counter at any time and inflict the ability at any
time, if the creature takes damage they lose all
smo