Rin and Seri, Inseparable (Buy-A-Box) [Core Set 2021] Dragon Wizard {T}: Search your library for

{T}: Search your library for an Equipment card

it deals that much damage to each other opponent

"If powerstones are energy stored in material form

Biiiiiig stretch

but not more life than the player's life total before the damage was dealt

Rin and Seri, Inseparable (Buy-A-Box) [Core Set 2021] Dragon Wizard {T}: Search your library forSet: Core Set 2021 Type: Legendary Creature Dog Cat Rarity: Mythic Cost: {1}{R}{G}{W} 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, 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.