Confidence:StrongSolidPlausibleTentativeSpeculative

• Marrow Shards

  W/P

  InstantW

  Marrow Shards is a free spell, so Loyal Gyrfalcon's cast trigger fires for nothing.
• Intervention Pact

  0

  InstantW

  Intervention Pact is a free spell, so Loyal Gyrfalcon's cast trigger fires for nothing.
• Muerra, Trash Tactician

  1RG

  Legendary Creature — Raccoon WarriorGR

  Muerra, Trash Tactician lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Dauthi Voidwalker

  BB

  Creature — Dauthi RogueB

  Dauthi Voidwalker lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Baron Helmut Zemo

  BBB

  Legendary Creature — Human Noble VillainB

  Baron Helmut Zemo lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Bonehoard Dracosaur

  3RR

  Creature — Dinosaur DragonR

  Bonehoard Dracosaur lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Ugin, Eye of the Storms

  7

  Legendary Planeswalker — UginC

  Ugin, Eye of the Storms lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Plargg and Nassari

  3RR

  Legendary Creature — Orc EfreetR

  Plargg and Nassari lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Narset, Enlightened Master

  3URW

  Legendary Creature — Human MonkRUW

  Narset, Enlightened Master lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Riku of Many Paths

  GUR

  Legendary Creature — Human WizardGRU

  Riku of Many Paths lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Quintorius Kand

  3RW

  Legendary Planeswalker — QuintoriusRW

  Quintorius Kand lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Narset, Enlightened Exile

  1URW

  Legendary Creature — Human MonkRUW

  Narset, Enlightened Exile lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Ragavan, Nimble Pilferer

  R

  Legendary Creature — Monkey PirateR

  Ragavan, Nimble Pilferer lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Bruse Tarl, Roving Rancher

  2RW

  Legendary Creature — Human WarriorRW

  Bruse Tarl, Roving Rancher lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Court of Locthwain

  2BB

  EnchantmentB

  Court of Locthwain lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Asmodeus the Archfiend

  4BB

  Legendary Creature — Devil GodB

  Asmodeus the Archfiend bounces a permanent, enabling Loyal Gyrfalcon's recast / spell-cast trigger.
• Jodah, the Unifier

  WUBRG

  Legendary Creature — Human WizardBGRUW

  Jodah, the Unifier lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Raffine's Guidance

  W

  Enchantment — AuraW

  Raffine's Guidance lets you cast/play from the graveyard, enabling Loyal Gyrfalcon's recursion loop.
• Eruth, Tormented Prophet

  1UR

  Legendary Creature — Human WizardRU

  Eruth, Tormented Prophet lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• The Flux

  2RR

  Enchantment — SagaR

  The Flux lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Reanimate

  B

  SorceryB

  Reanimate puts Loyal Gyrfalcon onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• The Ruinous Powers

  2BR

  EnchantmentBR

  The Ruinous Powers lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Goliath Daydreamer

  2RR

  Creature — Giant WizardR

  Goliath Daydreamer lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Triple Triad

  3RRR

  EnchantmentR

  Triple Triad lets you cast/play from exile, enabling Loyal Gyrfalcon's exile-recursion loop.
• Urabrask // The Great Work

  2RR

  Legendary Creature — Phyrexian Praetor // Enchantment — SagaR

  Urabrask lets you cast/play from the graveyard, enabling Loyal Gyrfalcon's recursion loop.