Goopslug, the Twisted Mucus

Haste
{r}: Put a +1/+1 counter on Goopslug.
{b}{r}: Draw two cards, and discard a card. You lose 1 life.
Slimey Residue- Whenever Goopslug attacks, you may pay {2}{r}. If you do, create a 3/3 green ooze token, tapped and attacking.