Confidence:StrongSolidPlausibleTentativeSpeculative

• Gideon, Ally of Zendikar

  2WW

  Legendary Planeswalker — GideonW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Kytheon, Hero of Akros // Gideon, Battle-Forged

  W

  Legendary Creature — Human Soldier // Legendary Planeswalker — GideonW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Gideon Jura

  3WW

  Legendary Planeswalker — GideonW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Gideon, Martial Paragon

  4W

  Legendary Planeswalker — GideonW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Dromoka's Command

  GW

  InstantGW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Najeela, the Blade-Blossom

  2R

  Legendary Creature — Human WarriorBGRUW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Gideon, the Oathsworn

  4WW

  Legendary Planeswalker — GideonW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Pain for All

  2R

  Enchantment — AuraR

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Fiendlash

  1R

  Artifact — EquipmentR

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Judgment of Alexander

  2W

  InstantW

  Damage pair: both cards convert effects into damage. They stack in a damage-heavy deck; on their own they're a value engine, not a closed loop.
• Chandra, Flamecaller

  4RR

  Legendary Planeswalker — ChandraR

  Chandra, Flamecaller deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Let the Galaxy Burn

  X5R

  SorceryR

  Let the Galaxy Burn deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Chain Reaction

  2RR

  SorceryR

  Chain Reaction deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Jack of Hearts, Volatile Hero

  1RR

  Legendary Creature — Alien Human HeroR

  Jack of Hearts, Volatile Hero deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Godo, Bandit Warlord

  5R

  Legendary Creature — Human BarbarianR

  Godo, Bandit Warlord grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• All-Out Assault

  2RWB

  EnchantmentBRW

  All-Out Assault grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• Exocrine

  X2R

  Creature — TyranidR

  Exocrine deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Balthier and Fran

  1RG

  Legendary Creature — Human RabbitGR

  Balthier and Fran grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• Bruce Banner // The Incredible Hulk

  U2RRGG

  Legendary Creature — Human Scientist Hero // Legendary Creature — Gamma Berserker HeroGRU

  Bruce Banner grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• Cyclone

  2GG

  EnchantmentG

  Cyclone deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Swooping Pteranodon

  3RW

  Creature — DinosaurRW

  Swooping Pteranodon produces broad damage that redirects through Gideon of the Trials into something useful.
• Subterranean Tremors

  XR

  SorceryR

  Subterranean Tremors deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.
• Éomer, Marshal of Rohan

  2RR

  Legendary Creature — Human KnightR

  Éomer, Marshal of Rohan grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• Fear of Missing Out

  1R

  Enchantment Creature — NightmareR

  Fear of Missing Out grants an extra combat phase, enabling Gideon of the Trials's combat-trigger payoff.
• Heaven // Earth

  XGXRR

  Instant // SorceryGR

  Heaven deals damage to many targets, fueling Gideon of the Trials's damage-payoff trigger.