Possum Heavy Gunner

Haste
Possum Heavy Gunner gains a +1/+1 counter for every Possum Soldier you control. You may tap one Possum Soldier to give one of its keywords to Possum Heavy Gunner.
{r/g}{r/g}{r/g}{t}: Deal X damage to target creature or player where X is the amount of +1/+1 counters on your side of the field