Confidence:StrongSolidPlausibleTentativeSpeculative

• Baron Helmut Zemo

  BBB

  Legendary Creature — Human Noble VillainB

  Copy engine: one card makes a copy of a creature every turn, and the other's enter-the-battlefield effect rewards each copy. Real, repeatable value — the partner can't untap or re-enter the copier, so it never goes infinite.
• Dragonback Assault

  3GUR

  EnchantmentGRU

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

  4RR

  EnchantmentR

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

  2GUR

  Legendary Planeswalker — SarkhanGRU

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

  3WU

  Legendary Planeswalker — ElminsterUW

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

  3RR

  Creature — DragonR

  Both cards produce the same kind of effect (shared token subtype).
• Goro-Goro and Satoru

  UBR

  Legendary Creature — Goblin HumanBRU

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

  2BRG

  Legendary Creature — Cat DragonBGR

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

  3R

  EnchantmentR

  Both cards produce the same kind of effect (shared token subtype).
• There and Back Again

  3RR

  Enchantment — SagaR

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

  R

  Creature — Human ShamanR

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

  1RR

  Legendary Planeswalker — SarkhanR

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

  1R

  Creature — Human BerserkerR

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

  1R

  Legendary Creature — Dwarf BerserkerR

  Both cards produce the same kind of effect (shared token subtype).
• The Legend of Roku // Avatar Roku

  2RR

  Enchantment — Saga // Legendary Creature — AvatarR

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

  3RR

  Legendary Planeswalker — SarkhanR

  Both cards produce the same kind of effect (shared token subtype).
• Rith, Liberated Primeval

  2RGW

  Legendary Creature — DragonGRW

  Both cards produce the same kind of effect (shared token subtype).
• Mirrorhall Mimic // Ghastly Mimicry

  3U

  Creature — Spirit // Enchantment — AuraU

  One-shot copy enabler: a card enters as a copy of another (Phantasmal Image, Body Double, Phyrexian Metamorph), firing the partner's substantive ETB once. Not a repeating chain — fires once on entry — but valuable when the partner's ETB is combo-grade (graveyard reanimator, mana doubler, etc.).
• Wake the Dragon

  4BR

  SorceryBR

  Both cards produce the same kind of effect (shared token subtype).
• The Misty Mountains Cold

  2R

  Enchantment — SagaR

  Both cards produce the same kind of effect (shared token subtype).
• The Elder Dragon War

  2RR

  Enchantment — SagaR

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

  1R

  Creature — Goblin ArtificerR

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

  5RR

  Creature — DragonR

  Both cards produce the same kind of effect (shared token subtype).
• Rohgahh, Kher Keep Overlord

  3BR

  Legendary Creature — Kobold WarriorBR

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

  3RG

  Legendary Creature — Dragon BarbarianGR

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