Addy and Fela, Inseparable

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}: Addy and Fela, Inseparable deals damage to any target equal to the number of
Dogs you control. You gain life equal to the number of Cats you control.