
Rin and Seri, Inseparable - Kennel of the Inner Sun
Rin and Seri, Inseparable · GRW · 100 cards · 37 lands
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Strategy
Rin and Seri, Inseparable rewards you for casting Dog and Cat spells by generating a stream of 1/1 tokens, while its activated ability turns your Dogs and Cats into direct damage and life gain. The deck leans on changelings (which count as both Dogs and Cats), token multiplication, and go-wide payoffs to build a battlefield that converts into damage, then closes with anthems and combat tricks. Ramp and card draw keep the engine running while removal clears blockers and problem permanents.
Early: Prioritize ramp and fixing so you can deploy Rin and Seri on curve. Sol Ring, Arcane Signet, Commander's Sphere, Birds of Paradise, and Springleaf Drum accelerate your mana, while Nature's Lore, Explore, Wood Elves, and Solemn Simulacrum fetch lands to fix your four colors. Changeling Wayfinder and Solemn Simulacrum also help find basics. Cast Rin and Seri as soon as possible so that every subsequent Dog or Cat spell (including any changeling) produces a token. Use cheap interaction like Crib Swap, Sear, and Cathartic Pyre to survive early aggression.
Mid: Start casting creature spells to trigger Rin and Seri and flood the board with 1/1 tokens. Changelings such as Chomping Changeling, Crib Swap, and Chain-friendly tribal cards count as Dogs and Cats, doubling the token output. Deploy anthem and payoff effects: Loyal Guardian's Lieutenant ability puts a +1/+1 counter on each creature you control while you control your commander, and Diligent Zookeeper pumps non-Human creatures by their many types. Radagast of Rhosgobel makes your first creature each turn cheaper and flash-castable. Evolution Sage proliferates on landfall to grow your counters. Use Rin and Seri's activated ability to ping opponents for the number of Dogs you control and gain life equal to your Cats.
Late: Once your board is wide, convert it into a lethal turn. Divine Visitation transforms your 1/1 token generation into 4/4 flying vigilance Angels, drastically increasing power. Helm of the Host copies a key creature each combat, and Loyal Guardian keeps stacking counters. Bast, Panther Goddess pumps an attacker each combat by your creature count, and Okoye, Mighty and Adored grants double strike and trample to an attacker that hits the monarch. Overwhelming Stampede and Collective Inferno serve as finishers. Greater Good and Harmonize refill your hand, and Chimil, the Inner Sun protects your spells and discovers each end step. Board wipes like Vanquish the Horde, Martial Coup, and Chain Reaction reset a stalled game—Martial Coup can even rebuild your board with Soldiers.
Win conditions: Primary win is a wide creature swarm turned lethal by anthems: Loyal Guardian's board-wide counters, Diligent Zookeeper's buffs, and Overwhelming Stampede granting trample and +X/+X. Divine Visitation upgrades your tokens into evasive 4/4 Angels for faster clocks. Rin and Seri's activated ability provides a repeatable direct-damage outlet scaling with your Dogs while gaining life off your Cats. Collective Inferno can double damage against a chosen creature type for a swing-based kill.
- Divine Visitation - Upgrades every token creation into a 4/4 flying vigilance Angel, transforming go-wide into hard-hitting evasion.
- Loyal Guardian - Lieutenant payoff that puts a +1/+1 counter on each creature you control every combat while you control your commander.
- Helm of the Host - Copies a key creature each combat, snowballing your board and doubling powerful triggers.
- Overwhelming Stampede - Finisher that grants trample and +X/+X based on your greatest power for a wide alpha strike.
- Radagast of Rhosgobel - Cost reduction and flash for your first creature spell each turn, enabling more token triggers.
- Diligent Zookeeper - Anthem pumping your many-typed non-Human tokens and changelings substantially.
- Chimil, the Inner Sun - Protects your spells from counters and provides free value each end step via discover 5.
Commander (1)

Creatures (26)

























Instants (7)





Sorceries (11)








Artifacts (12)









Enchantments (6)






Lands (37)
































