Confidence:StrongSolidPlausibleTentativeSpeculative

• Kessig Prowler // Sinuous Predator

  G

  Creature — Werewolf Horror // Creature — Eldrazi WerewolfG

  Synergy between the two cards.
• Sunder Shaman

  RRGG

  Creature — Giant ShamanGR

  Synergy between the two cards.
• Professional Wrestler

  3G

  Creature — Human Warrior PerformerG

  Synergy between the two cards.
• Outland Colossus

  3GG

  Creature — GiantG

  Synergy between the two cards.
• Hungering Hydra

  XG

  Creature — HydraG

  Synergy between the two cards.
• Tenacious Tosk

  3G

  Creature — Tosk RogueG

  Synergy between the two cards.
• Safewright Cavalry

  3G

  Creature — Elf WarriorG

  Synergy between the two cards.
• Vigorspore Wurm

  5G

  Creature — WurmG

  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.
• Battlefront Krushok

  4G

  Creature — BeastG

  Synergy between the two cards.
• Krosan Vorine

  3G

  Creature — Cat BeastG

  Synergy between the two cards.
• Mirror Room // Fractured Realm

  2U5UU

  Enchantment — Room // Enchantment — RoomU

  Mirror Room makes Barbarian Class's triggered ability trigger an additional time — each time it fires, you get it twice. Value, not a loop.
• Rings of Brighthearth

  3

  ArtifactC

  Barbarian Class has activated abilities that aren't mana abilities, fueling Rings of Brighthearth's activation-trigger.