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.
• Spreading Plague

  4B

  EnchantmentB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Season of Growth

  1G

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Kiora, Behemoth Beckoner

  2G/U

  Legendary Planeswalker — KioraGU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Kiora, Master of the Depths

  2GU

  Legendary Planeswalker — KioraGU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Gisa, the Hellraiser

  3BB

  Legendary Creature — Human WarlockB

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

  2G

  Creature — HydraG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Fecund Greenshell

  3GG

  Creature — Elemental TurtleG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Lonis, Cryptozoologist

  GU

  Legendary Creature — Snake Elf ScoutGU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Gladewalker Ritualist

  2G

  Creature — ShapeshifterG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Garruk's Uprising

  2G

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• April O'Neil, Live on the Scene

  1U

  Legendary Creature — Human DetectiveU

  Both cards trigger when a creature enters the battlefield — they fire together.
• Sunstrike Legionnaire

  1W

  Creature — Human SoldierW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Brainstealer Dragon

  5BB

  Creature — Dragon HorrorB

  Both cards trigger when a creature enters the battlefield — they fire together.
• Prowl, Stoic Strategist // Prowl, Pursuit Vehicle

  3W

  Legendary Artifact Creature — Robot // Legendary Artifact — VehicleW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Tribute to the World Tree

  GGG

  EnchantmentG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Arcades, the Strategist

  1GWU

  Legendary Creature — Elder DragonGUW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Oath of Eorl

  3RW

  Enchantment — SagaRW

  Both cards produce the same kind of effect (shared token subtype).
• Bess, Soul Nourisher

  1GW

  Legendary Creature — Human CitizenGW

  Both cards trigger when a creature enters the battlefield — they fire together.
• General's Enforcer

  WB

  Creature — Human SoldierBW

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

  1

  ArtifactC

  Both cards trigger when a creature enters the battlefield — they fire together.
• Slash, Reptile Rampager

  3RR

  Legendary Creature — Mutant Berserker TurtleR

  Both cards trigger when a creature enters the battlefield — they fire together.
• Dinosaur Egg

  1G

  Creature — Dinosaur EggG

  Both cards trigger when a creature enters the battlefield — they fire together.
• Enduring Innocence

  1WW

  Enchantment Creature — Sheep GlimmerW

  Both cards trigger when a creature enters the battlefield — they fire together.
• Extraordinary Journey

  XXUU

  EnchantmentU

  Both cards trigger when a creature enters the battlefield — they fire together.