Confidence:StrongSolidPlausibleTentativeSpeculative

• Sarkhan's Unsealing

  3R

  EnchantmentR

  Both cards trigger when a spell is cast — they fire together.
• Quintorius Kand

  3RW

  Legendary Planeswalker — QuintoriusRW

  Both cards trigger when a spell is cast — they fire together.
• Perch Protection

  4WW

  InstantW

  Both cards produce the same kind of effect (shared token subtype).
• Mu Yanling, Sky Dancer

  1UU

  Legendary Planeswalker — YanlingU

  Both cards produce the same kind of effect (shared token subtype).
• Primeval Bounty

  5G

  EnchantmentG

  Both cards trigger when a spell is cast — they fire together.
• Kasla, the Broken Halo

  3URW

  Legendary Creature — Angel AllyRUW

  Both cards trigger when a spell is cast — they fire together.
• Thor, God of Thunder

  3RR

  Legendary Creature — God Warrior HeroR

  Both cards trigger when a spell is cast — they fire together.
• The Eagles Are Coming!

  1W

  InstantW

  Both cards produce the same kind of effect (shared token subtype).
• Feroz, Ulgrotha's Warden

  3GWU

  Legendary Planeswalker — FerozGUW

  Both cards produce the same kind of effect (shared token subtype).
• Pink Horror

  3UR

  Creature — Demon HorrorRU

  Both cards trigger when a spell is cast — they fire together.
• Murmuration

  4W

  EnchantmentW

  Both cards produce the same kind of effect (shared token subtype).
• Taigam, Master Opportunist

  1U

  Legendary Creature — Human MonkU

  Both cards trigger when a spell is cast — they fire together.
• Alrund's Epiphany

  5UU

  SorceryU

  Both cards produce the same kind of effect (shared token subtype).
• Ashling, Flame Dancer

  2RR

  Legendary Creature — Elemental ShamanR

  Both cards trigger when a spell is cast — they fire together.
• Mirrorhall Mimic // Ghastly Mimicry

  3U

  Creature — Spirit // Enchantment — AuraU

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• Kykar, Zephyr Awakener

  2WU

  Legendary Creature — Bird WizardUW

  Both cards trigger when a spell is cast — they fire together.
• Rage Extractor

  4R/P

  ArtifactR

  Both cards trigger when a spell is cast — they fire together.
• Tor Wauki the Younger

  3BR

  Legendary Creature — Human ArcherBR

  Both cards trigger when a spell is cast — they fire together.
• Sorin of House Markov // Sorin, Ravenous Neonate

  1B

  Legendary Creature — Human Noble // Legendary Planeswalker — SorinBW

  Both cards trigger when a spell is cast — they fire together.
• Summon: Good King Mog XII

  4W

  Enchantment Creature — Saga MoogleW

  Both cards trigger when a spell is cast — they fire together.
• Surtr, Fiery Jötun

  3RR

  Legendary Creature — Giant God WarriorR

  Both cards trigger when a spell is cast — they fire together.
• Scytheclaw Raptor

  2R

  Creature — DinosaurR

  Both cards trigger when a spell is cast — they fire together.
• Migratory Route

  3WU

  SorceryUW

  Both cards produce the same kind of effect (shared token subtype).
• The Fantastic Four

  RGWU

  Legendary Creature — Human HeroGRUW

  Both cards trigger when a spell is cast — they fire together.
• Loki, God of Lies

  1RR

  Legendary Creature — God Sorcerer VillainR

  Both cards trigger when a spell is cast — they fire together.