Below lie the 50 red cards that are part of the cube.

Dead//Gone Firebolt Goblin Guide
Grim Lavamancer Lightning Bolt Shattering Spree
Stromkirk Noble Faithless Looting Blood Knight
Crimson Mage Curse of Stalked Prey Incinerate
Magma Jet Mogg War Marshal Plated Geopede
Pyroclasm Searing Blaze Lightning Mauler
Falkenrath Exterminator Exuberant Firestoker Fiery Temper
Hellfire Mongrel Honden of Infinite Rage Rockslide Elemental
Tauren Mauler Volcanic Fallout Markov Blademaster
Pyreheart Wolf Vulshok Sorcerer Anger
Chandra, the Firebrand Flametongue Kavu Goblin Goon
Jeska, Warrior Adept Violent Eruption Hound of Griselbrand
Beacon of Destruction Falkenrath Marauders Fortune Thief
Hunted Dragon In the Web of War Reckless Wurm
Scourge of Geier Reach Siege-Gang Commander Zealous Conscripts
Mass Mutiny Inferno Titan Moltensteel Dragon
Thunderous Wrath Blasphemous Act

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About the cube