Feline Behemoth

Vigilance
{g}{g}{w}{w} : Monstrosity 4 (If this creature
isn't mounstrous put 4 +1/+1 counters on it
and it becomes monstrous. )
Cats you control have {g}{w} : Monstrosity 3.
Whenever a cat you control becomes monstrous
it fights target creature you don't control.