Confidence:StrongSolidPlausibleTentativeSpeculative

• The Legend of Yangchen // Avatar Yangchen

  3WW

  Enchantment — Saga // Legendary Creature — AvatarW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Appa, Loyal Sky Bison

  4WW

  Legendary Creature — Bison AllyW

  Blink engine: one card blinks creatures — once a turn, once a combat, or each time you pay — and the other's enter-the-battlefield effect fires again on every blink. Real, repeatable value — never infinite on its own.
• Traveling Chocobo

  2G

  Creature — BirdG

  Traveling Chocobo makes Hormagaunt Horde's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Season of Growth

  1G

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Dragonback Assault

  3GUR

  EnchantmentGRU

  Both cards trigger on landfall — they fire together.
• Sapling Nursery

  6GG

  EnchantmentG

  Both cards trigger on landfall — they fire together.
• The Lost and the Damned

  1UR

  EnchantmentRU

  Both cards trigger on landfall — they fire together.
• Springheart Nantuko

  1G

  Enchantment Creature — Insect MonkG

  Both cards trigger on landfall — they fire together.
• Spreading Plague

  4B

  EnchantmentB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Pia Nalaar, Consul of Revival

  RW

  Legendary Creature — Human ArtificerRW

  Both cards trigger on landfall — they fire together.
• Shanid, Sleepers' Scourge

  1RWB

  Legendary Creature — Human KnightBRW

  Both cards trigger on landfall — they fire together.
• Omnath, Locus of Rage

  3RRGG

  Legendary Creature — ElementalGR

  Both cards trigger on landfall — they fire together.
• Omnath, Locus of Creation

  RGWU

  Legendary Creature — ElementalGRUW

  Both cards trigger on landfall — they fire together.
• Tinybones Joins Up

  B

  Legendary EnchantmentB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Bloodghast

  BB

  Creature — Vampire SpiritB

  Both cards trigger on landfall — they fire together.
• Faramir, Steward of Gondor

  1WU

  Legendary Creature — Human NobleUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Cosima, God of the Voyage // The Omenkeel

  2U1U

  Legendary Creature — God // Legendary Artifact — VehicleU

  Both cards trigger on landfall — they fire together.
• Primeval Bounty

  5G

  EnchantmentG

  Both cards trigger on landfall — they fire together.
• Eye of Singularity

  3W

  World EnchantmentW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Rampaging Baloths

  4GG

  Creature — BeastG

  Both cards trigger on landfall — they fire together.
• Garruk, Curse Breaker

  3GG

  Legendary Planeswalker — GarrukG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Kadena, Slinking Sorcerer

  1BGU

  Legendary Creature — Snake Wizard SorcererBGU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Grist, Voracious Larva // Grist, the Plague Swarm

  G

  Legendary Creature — Insect // Legendary Planeswalker — GristBG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Faldorn, Dread Wolf Herald

  1RG

  Legendary Creature — Human DruidGR

  Both cards trigger on landfall — they fire together.
• Ashiok, Nightmare Muse

  3UB

  Legendary Planeswalker — AshiokBU

  Ashiok, Nightmare Muse bounces a permanent, enabling Hormagaunt Horde's recast / spell-cast trigger.