Confidence:StrongSolidPlausibleTentativeSpeculative

• Arna Kennerüd, Skycaptain

  2WUB

  Legendary Creature — Human KnightBUW

  Both cards trigger when a permanent attacks — they fire together.
• Rohgahh, Kher Keep Overlord

  3BR

  Legendary Creature — Kobold WarriorBR

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

  4RR

  Legendary Creature — DragonR

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

  W

  Creature — Human ClericW

  Both cards trigger when a permanent attacks — they fire together.
• Champions from Beyond

  XWW

  EnchantmentW

  Both cards trigger when a permanent attacks — they fire together.
• Displacer Kitten

  3U

  Creature — Cat BeastU

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Brago, King Eternal

  2WU

  Legendary Creature — Spirit NobleUW

  Blink pair: one card can blink creatures repeatedly, and the other's ETB rewards every re-entry. Free-running only when the blink is free or refunded (Deadeye + Drake class); otherwise a repeatable value engine.
• Craig Boone, Novac Guard

  1RW

  Legendary Creature — Human SoldierRW

  Both cards trigger when a permanent attacks — they fire together.
• Shard of Broken Glass

  1

  Artifact — EquipmentC

  Both cards trigger when a permanent attacks — they fire together.
• Ran and Shaw

  3RR

  Legendary Creature — DragonR

  Both cards produce the same kind of effect (shared token subtype).
• Nuka-Nuke Launcher

  2

  Artifact — EquipmentC

  Both cards trigger when a permanent attacks — they fire together.
• Echoing Assault

  4R

  EnchantmentR

  Both cards trigger when a permanent attacks — they fire together.
• Mirror Mockery

  1U

  Enchantment — AuraU

  Both cards trigger when a permanent attacks — they fire together.
• Psychic Impetus

  2U

  Enchantment — AuraU

  Both cards trigger when a permanent attacks — they fire together.
• Bone Sabres

  2G

  Artifact — EquipmentG

  Both cards trigger when a permanent attacks — they fire together.
• Doors of Durin

  3RG

  Legendary ArtifactGR

  Both cards trigger when a permanent attacks — they fire together.
• Acquired Mutation

  2R

  Enchantment — AuraR

  Both cards trigger when a permanent attacks — they fire together.
• Cloak of Confusion

  1B

  Enchantment — AuraB

  Both cards trigger when a permanent attacks — they fire together.
• Andúril, Narsil Reforged

  2

  Legendary Artifact — EquipmentC

  Both cards trigger when a permanent attacks — they fire together.
• Day of the Dragons

  4UUU

  EnchantmentU

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

  2R

  Enchantment — Aura CurseR

  Both cards trigger when a permanent attacks — they fire together.
• Nascent Metamorph

  1U

  Creature — ShapeshifterU

  Both cards trigger when a permanent attacks — they fire together.
• Narset, Enlightened Exile

  1URW

  Legendary Creature — Human MonkRUW

  Both cards trigger when a permanent attacks — they fire together.
• Zur the Enchanter

  1WUB

  Legendary Creature — Human WizardBUW

  Both cards trigger when a permanent attacks — they fire together.
• Agrus Kos, Spirit of Justice

  2RW

  Legendary Creature — Spirit DetectiveRW

  Both cards trigger when a permanent attacks — they fire together.