Rin and Seri, Inseparable (Extended Art) Finish:Nonfoil Untap all artifacts you control

Untap all artifacts you control during each other player's untap step

convert Ultra Magnus at end of combat

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

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

Sacrifice after IV

Rin and Seri, Inseparable (Extended Art) Finish:Nonfoil Untap all artifacts you controlWhenever 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.