edhseer Commander synergy, explained
Legendary Creature — Dog Cat
Mana cost: {1}{R}{G}{W}
Whenever you cast a Dog spell, create a 1/1 green Cat creature token.
triggered — makes a token
Whenever you cast a Cat spell, create a 1/1 white Dog creature token.
triggered — makes a 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.
activated {R}{G}{W}, {T} — deals damage
activated {R}{G}{W}, {T} — gains you life
Causes: create a Cat creature token, put a Cat creature token onto the battlefield, create a Dog creature token, put a Dog creature token onto the battlefield, anything deals noncombat damage, gain life.
Cares about: a Dog spell is cast, a Cat spell is cast, a Dog you control, a Cat you control.
a Cat deals combat damage — 313 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
a Cat attacks — 313 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
a nontoken Cat enters the battlefield — 314 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
a Cat it grants abilities to — 318 cards in Rin and Seri's colors can cause this.
317 other cards cause it too. These are the ones with the most connections.
a Cat enters the battlefield — 330 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When a Cat enters thanks to Rin and Seri, Inseparable:
life is gained — 1,173 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable gains life:
44 other cards care about it too. These are the ones with the most connections.
provide a creature to sacrifice — 1,631 cards in Rin and Seri's colors can cause this.
1,626 other cards cause it too. These are the ones with the most connections.
a creature token enters the battlefield — 1,687 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When a Cat enters thanks to Rin and Seri, Inseparable:
a creature token is created — 1,687 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
3 other cards care about it too. These are the ones with the most connections.
anything deals noncombat damage — 2,436 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable deals noncombat damage:
30 other cards care about it too. These are the ones with the most connections.
life is lost — 1,483 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable makes a player lose life:
17 other cards care about it too. These are the ones with the most connections.
a token enters the battlefield — 2,221 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When a Cat enters thanks to Rin and Seri, Inseparable:
a token is created — 2,222 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable makes a Cat token:
12 other cards care about it too. These are the ones with the most connections.
a creature attacks — 10,109 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable attacks:
136 other cards care about it too. These are the ones with the most connections.
anything attacks — 10,109 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
When Rin and Seri, Inseparable attacks:
81 other cards care about it too. These are the ones with the most connections.
a creature blocks — 10,109 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
17 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 11,196 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
221 other cards care about it too. These are the ones with the most connections.
anything enters the battlefield — 15,604 cards in Rin and Seri's colors can cause this (Rin and Seri is one).
30 other cards care about it too. These are the ones with the most connections.