Ruff Bunch

Whenever you cast a Dog spell, create a 1/1 green Cat creature token.

Whenever you cast a Cat spell, create a 1/1 white Dog creature token.

{r}{g}{w},{t}: Ruff Bunch deals damage to any target equal to the number of Dogs you control. You gain life equal to the number of Cats you control.

"Dog is God spelled backwards." - Sun Tzu