Oft-Sleeping Fireball

{r}{s} or if Oft-Sleeping Fireball is targeted by a
Blue spell: Oft-Sleeping Fire gains +1/+1 until
end of turn, At the end of the turn, place a -1/-1
counter on any creature that blocked or was
blocked by it. Use this ability only once a turn.
" If you think about it, it really does make sense. The
only things that really upsets it a drenching with
water or is a pulse of cold-infused magic.