Rin and Seri, Inseparable (Extended Art) Finish:Nonfoil Then you may cast an

Then you may cast an instant or sorcery spell with mana value 2 or less from your graveyard without paying its mana cost

you may pay {2} and exile this card from your hand face down

there is an additional combat phase followed by an additional main phase

When Emrakul leaves the battlefield

then investigates

Rin and Seri, Inseparable (Extended Art) Finish:Nonfoil Then you may cast anWhenever 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}: Rin and Seri deals damage to any target equal to the number of Dogs you control. You gain life equal to the number of Cats you control.