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.
• Colorstorm Stallion

  1UR

  Creature — Elemental HorseRU

  Both cards produce the same kind of effect (shared token subtype).
• Mu Yanling, Sky Dancer

  1UU

  Legendary Planeswalker — YanlingU

  Both cards produce the same kind of effect (shared token subtype).
• The Wandering Minstrel

  GU

  Legendary Creature — Human BardBGRUW

  Both cards produce the same kind of effect (shared token subtype).
• Zaffai, Thunder Conductor

  2UR

  Legendary Creature — Human ShamanRU

  Both cards produce the same kind of effect (shared token subtype).
• Chandra, Acolyte of Flame

  1RR

  Legendary Planeswalker — ChandraR

  Both cards produce the same kind of effect (shared token subtype).
• Nissa, Vastwood Seer // Nissa, Sage Animist

  2G

  Legendary Creature — Elf Scout // Legendary Planeswalker — NissaG

  Both cards produce the same kind of effect (shared token subtype).
• Valduk, Keeper of the Flame

  2R

  Legendary Creature — Human ShamanR

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

  2G

  Creature — ElementalG

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

  3RRR

  Creature — Elemental IncarnationR

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

  4RR

  Legendary Planeswalker — ChandraR

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

  1R

  Creature — Human ShamanR

  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.).
• Rakka Mar

  2RR

  Legendary Creature — Human ShamanR

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

  1RR

  Creature — Djinn BardR

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

  R

  SorceryR

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

  1G

  Kindred Enchantment — ElementalG

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

  4GW

  Creature — Elemental ElkGW

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

  1

  ArtifactC

  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.
• Rite of the Raging Storm

  3RR

  EnchantmentR

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

  5UR

  SorceryRU

  Both cards produce the same kind of effect (shared token subtype).
• Campus Composer // Aqueous Aria

  3U4U

  Creature — Merfolk Bard // SorceryU

  Both cards produce the same kind of effect (shared token subtype).
• Titania, Protector of Argoth

  3GG

  Legendary Creature — ElementalG

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

  3GG

  EnchantmentG

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

  2R

  ArtifactR

  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.).