Confidence:StrongSolidPlausibleTentativeSpeculative

• Demonic Covenant

  4BB

  Kindred Enchantment — DemonB

  Both cards produce the same kind of effect (shared token subtype).
• Bloodline Keeper // Lord of Lineage

  2BB

  Creature — Vampire // Creature — VampireB

  Both cards produce the same kind of effect (shared token subtype).
• Glass-Cast Heart

  2B

  ArtifactB

  Both cards produce the same kind of effect (shared token subtype).
• Mirror Room // Fractured Realm

  2U5UU

  Enchantment — Room // Enchantment — RoomU

  Mirror Room makes Canonized in Blood's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Edgar, Charmed Groom // Edgar Markov's Coffin

  2WB

  Legendary Creature — Vampire Noble // Legendary ArtifactBW

  Both cards produce the same kind of effect (shared token subtype).
• Mavren Fein, Dusk Apostle

  2W

  Legendary Creature — Vampire ClericW

  Both cards produce the same kind of effect (shared token subtype).
• Edgar Markov

  3RWB

  Legendary Creature — Vampire KnightBRW

  Both cards produce the same kind of effect (shared token subtype).
• Hungry for More

  BR

  SorceryBR

  Both cards produce the same kind of effect (shared token subtype).
• Promise of Power

  2BBB

  SorceryB

  Both cards produce the same kind of effect (shared token subtype).
• Preacher of the Schism

  2B

  Creature — Vampire ClericB

  Both cards produce the same kind of effect (shared token subtype).
• Great Unclean One

  4B

  Creature — DemonB

  Both cards produce the same kind of effect (shared token subtype).
• Clavileño, First of the Blessed

  1WB

  Legendary Creature — Vampire ClericBW

  Both cards produce the same kind of effect (shared token subtype).
• Ob Nixilis of the Black Oath

  3BB

  Legendary Planeswalker — NixilisB

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

  3BB

  Legendary Planeswalker — ThomilB

  Both cards produce the same kind of effect (shared token subtype).
• Inquisitor Eisenhorn

  2UB

  Legendary Creature — Human InquisitorBU

  Both cards produce the same kind of effect (shared token subtype).
• Sorin the Mirthless

  2BB

  Legendary Planeswalker — SorinB

  Both cards produce the same kind of effect (shared token subtype).
• Unholy Annex // Ritual Chamber

  2B3BB

  Enchantment — Room // Enchantment — RoomB

  Both cards produce the same kind of effect (shared token subtype).
• Tasha, the Witch Queen

  3UB

  Legendary Planeswalker — TashaBU

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

  3UR

  Creature — Demon HorrorRU

  Both cards produce the same kind of effect (shared token subtype).
• Promise of Aclazotz // Foul Rebirth

  1B2B

  Enchantment // Sorcery — AdventureB

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

  B

  Creature — Human ClericB

  Both cards produce the same kind of effect (shared token subtype).
• Ghalta and Mavren

  3GGWW

  Legendary Creature — Dinosaur VampireGW

  Both cards produce the same kind of effect (shared token subtype).
• Sorin, Lord of Innistrad

  2WB

  Legendary Planeswalker — SorinBW

  Both cards produce the same kind of effect (shared token subtype).
• Sorin, Grim Nemesis

  4WB

  Legendary Planeswalker — SorinBW

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

  B

  Enchantment — AuraB

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