Rin and Seri, Inseparable (Borderless) [Secret Lair Drop Series] DP12 then you can add 1

then you can add 1 Field Spell with a different name than the destroyed card(s)

If this cards attacks

you may play it this turn

inflict damage to your opponent equal to the destroyed monster's ATK on the field

Set: Scarlet & Violet: Paldea Evolved Type: Fighting Rarity: Special Illustration Rare Retreat cost: Colorless

Rin and Seri, Inseparable (Borderless) [Secret Lair Drop Series] DP12 then you can add 1Set: Secret Lair Drop Series 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.