Confidence:StrongSolidPlausibleTentativeSpeculative

• Sunder Shaman

  RRGG

  Creature — Giant ShamanGR

  Synergy between the two cards.
• Outland Colossus

  3GG

  Creature — GiantG

  Synergy between the two cards.
• Professional Wrestler

  3G

  Creature — Human Warrior PerformerG

  Synergy between the two cards.
• Tenacious Tosk

  3G

  Creature — Tosk RogueG

  Synergy between the two cards.
• Hungering Hydra

  XG

  Creature — HydraG

  Synergy between the two cards.
• Safewright Cavalry

  3G

  Creature — Elf WarriorG

  Synergy between the two cards.
• Krosan Vorine

  3G

  Creature — Cat BeastG

  Synergy between the two cards.
• Kessig Prowler // Sinuous Predator

  G

  Creature — Werewolf Horror // Creature — Eldrazi WerewolfG

  Synergy between the two cards.
• Bristling Boar

  3G

  Creature — BoarG

  Synergy between the two cards.
• The Foretold Soldier

  2GG

  Creature — Alien Zombie SoldierG

  Synergy between the two cards.
• Charging Rhino

  3GG

  Creature — RhinoG

  Synergy between the two cards.
• Ironhoof Ox

  3GG

  Creature — OxG

  Synergy between the two cards.
• Norwood Riders

  3G

  Creature — ElfG

  Synergy between the two cards.
• Stalking Tiger

  3G

  Creature — CatG

  Synergy between the two cards.
• Vigorspore Wurm

  5G

  Creature — WurmG

  Synergy between the two cards.
• Battlefront Krushok

  4G

  Creature — BeastG

  Synergy between the two cards.
• 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.
• Chandra, Flameshaper

  5RR

  Legendary Planeswalker — ChandraR

  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.
• Copperhorn Scout

  G

  Creature — Elf ScoutG

  Copperhorn Scout untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• White Plume Adventurer

  2W

  Creature — Orc ClericW

  White Plume Adventurer untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• Jace, Ingenious Mind-Mage

  4UU

  Legendary Planeswalker — JaceU

  Jace, Ingenious Mind-Mage untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• Aggravated Assault

  2R

  EnchantmentR

  Aggravated Assault untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• The Thirteenth Doctor

  1GU

  Legendary Creature — Time Lord DoctorGU

  The Thirteenth Doctor untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• Veteran Beastrider

  1GW

  Creature — Human KnightGW

  Veteran Beastrider untaps all (or many) permanents, refreshing Stirring Bard's tap activation.
• Nephalia Smuggler

  U

  Creature — Human RogueU

  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.