Confidence:StrongSolidPlausibleTentativeSpeculative

• Summoner's Sending

  1W

  EnchantmentW

  Both cards produce the same kind of effect (shared token subtype).
• Invoke the Ancients

  1GGGG

  SorceryG

  Both cards produce the same kind of effect (shared token subtype).
• Antiquities on the Loose

  1WW

  SorceryW

  Both cards produce the same kind of effect (shared token subtype).
• Kykar, Wind's Fury

  1URW

  Legendary Creature — Bird WizardRUW

  Both cards produce the same kind of effect (shared token subtype).
• Quintorius, Loremaster

  3RW

  Legendary Creature — Elephant ClericRW

  Both cards produce the same kind of effect (shared token subtype).
• Hofri Ghostforge

  3RW

  Legendary Creature — Dwarf ClericRW

  Both cards produce the same kind of effect (shared token subtype).
• Baboon Spirit

  2U

  Creature — Monkey SpiritU

  Both cards produce the same kind of effect (shared token subtype).
• Obscura Ascendancy

  WUB

  EnchantmentBUW

  Both cards produce the same kind of effect (shared token subtype).
• Spirit Bonds

  1W

  EnchantmentW

  Both cards produce the same kind of effect (shared token subtype).
• Thalia's Geistcaller

  2W

  Creature — Human ClericW

  Both cards produce the same kind of effect (shared token subtype).
• Oyobi, Who Split the Heavens

  6W

  Legendary Creature — SpiritW

  Both cards produce the same kind of effect (shared token subtype).
• Quintorius, Field Historian

  3RW

  Legendary Creature — Elephant ClericRW

  Both cards produce the same kind of effect (shared token subtype).
• Sekki, Seasons' Guide

  5GGG

  Legendary Creature — SpiritG

  Both cards produce the same kind of effect (shared token subtype).
• Sorcerer's Broom

  2

  Artifact Creature — SpiritC

  Both cards produce the same kind of effect (shared token subtype).
• Millicent, Restless Revenant

  5WU

  Legendary Creature — Spirit SoldierUW

  Both cards produce the same kind of effect (shared token subtype).
• King of the Oathbreakers

  2WB

  Legendary Creature — Spirit NobleBW

  Both cards produce the same kind of effect (shared token subtype).
• Drogskol Cavalry

  5WW

  Creature — Spirit KnightW

  Both cards produce the same kind of effect (shared token subtype).
• Baku Altar

  2

  ArtifactC

  Both cards produce the same kind of effect (shared token subtype).
• Dorothea, Vengeful Victim // Dorothea's Retribution

  WU

  Legendary Creature — Spirit // Enchantment — AuraUW

  Both cards produce the same kind of effect (shared token subtype).
• Agrus Kos, Spirit of Justice

  2RW

  Legendary Creature — Spirit DetectiveRW

  Lost in the Spirit World bounces a permanent, enabling Agrus Kos, Spirit of Justice's recast / spell-cast trigger.
• Kaya, Intangible Slayer

  3WWBB

  Legendary Planeswalker — KayaBW

  Both cards produce the same kind of effect (shared token subtype).
• Nicol Bolas, the Ravager // Nicol Bolas, the Arisen

  1UBR

  Legendary Creature — Elder Dragon // Legendary Planeswalker — BolasBRU

  Lost in the Spirit World bounces a permanent, enabling Nicol Bolas, the Ravager's recast / spell-cast trigger.
• Phlage, Titan of Fire's Fury

  1RW

  Legendary Creature — Elder GiantRW

  Lost in the Spirit World bounces a permanent, enabling Phlage, Titan of Fire's Fury's recast / spell-cast trigger.
• Quintorius Kand

  3RW

  Legendary Planeswalker — QuintoriusRW

  Both cards produce the same kind of effect (shared token subtype).
• Serene Sleuth

  1W

  Creature — Human DetectiveW

  Lost in the Spirit World bounces a permanent, enabling Serene Sleuth's recast / spell-cast trigger.