First printed in Secret Lair Drop (2023)
All 4 prints
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Secret Lair Drop (SLD) #2668, 2026
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Secret Lair Drop (SLD) #1910, 2025
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Secret Lair Drop (SLD) #1230, 2023
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Core Set 2021 (M21) #278, 2020
Rin and Seri, Inseparable 



Legendary Creature — Dog Cat
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.,
: 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.
4/4
- Illustrated by
- Paul Mafayon
Legality
- Legal in
- Pioneer, Modern, Legacy, Vintage, Historic, Timeless, Penny Dreadful, Gladiator, Commander, Duel Commander, Oathbreaker, Brawl, Competitive Brawl
- Not legal in
- Standard, Pauper, Future Standard, Alchemy, Premodern, Old School 93/94, Pauper Commander, PreDH, Tiny Leaders, Standard Brawl
Rulings (4)
- If the chosen target is an illegal target by the time Rin and Seri's last ability tries to resolve, the ability won't resolve. You won't gain life.
- Rin and Seri's first two abilities don't trigger when you cast Rin and Seri.
- An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
- The amount of damage Rin and Seri's last ability deals is determined only as that ability resolves. If Rin and Seri is still on the battlefield, it'll count itself.
Prices
MTGO price: 0.006 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
130 combos, the most popular first:
- Infinite creature ETB, Infinite creature LTB…: Earthcraft + Rin and Seri, Inseparable + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Earthcraft + Rin and Seri, Inseparable + Temur Sabertooth + Universal Automaton
- Infinite creature ETB, Infinite creature LTB…: Akroma's Memorial + Cryptolith Rite + Rin and Seri, Inseparable + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Elven Chorus + Rin and Seri, Inseparable + Rising of the Day + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Cryptolith Rite + Rin and Seri, Inseparable + Rising of the Day + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Concordant Crossroads + Cryptolith Rite + Rin and Seri, Inseparable + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Cryptolith Rite + Fires of Yavimaya + Rin and Seri, Inseparable + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Elven Chorus + Fires of Yavimaya + Rin and Seri, Inseparable + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Cryptolith Rite + Rin and Seri, Inseparable + Thousand-Year Elixir + Whitemane Lion
- Infinite creature ETB, Infinite creature LTB…: Akroma's Memorial + Elven Chorus + Rin and Seri, Inseparable + Whitemane Lion