Rin and Seri, Inseparable // Rin and Seri, Inseparable Finish:Nonfoil Then if you control eight

Then if you control eight or more artifacts with the same name as one another

Enchant creature Enchanted creature has protection from white

create X 1/1 colorless Hero creature tokens

{2}: Regenerate this creature

Each Magic: The Gathering - Secrets of Strixhaven Lifegain Theme Deck contains:

Rin and Seri, Inseparable // Rin and Seri, Inseparable Finish:Nonfoil Then if you control eightRin and Seri, 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}: 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. Rin and Seri, Inseparable Whenever you cast a Dog spell, create a 1 1 green Cat creature token. Whenever you cast a Cat spell, create a 1