Tuna and Wonder, Inseparable

Whenever you cast a Pepa Dog spell, create a
1/1 green Cat creature token.
Whenever you cast a Cat spell, create a 1/1
white Pepa Dog creature token.
{r}{g}{w},{t}: Tuna and Wonder, Inseparable deals damage to any target equal to the number of Pepa Dogs in your control. You gain life equal to the number of Cats you control.