Omnath's Big X Spells | Commander | Jason Alt Commander (1) 1 Omnath, Locus of All Creatures (19) 1 Bloom Tender 1 Faeburrow Elder 1 Genesis Hydra 1 Gyrus, Waker of Corpses 1 Hydroid Krasis 1 Klauth, Unrivaled Ancient 1 Knotvine Mystic 1 Lifeblood Hydra 1 Maga, Traitor to Mortals 1 Magus Lucea Kane 1 Nexos 1 Nyxbloom Ancient 1 Omnath, Locus of Creation 1 Rosheen Meanderer 1 Seedborn Muse 1 Selvala, Heart of the Wilds 1 Voracious Hydra 1 Zacama, Primal Calamity 1 Zaxara, the Exemplary Instants (9) 1 Chord of Calling 1 Dominate 1 Electrodominance 1 Expansion // Explosion 1 Heroic Intervention 1 March of the Multitudes 1 Sphinx's Revelation 1 Storm King's Thunder 1 Tyvar's Stand Sorceries (16) 1 Agadeem's Awakening // Agadeem, the Undercrypt 1 Animist's Awakening 1 Awaken the Woods 1 Blue Sun's Twilight 1 Crackle with Power 1 Cultivate 1 Debt to the Deathless 1 Entrancing Melody 1 Exsanguinate 1 Finale of Eternity 1 Finale of Revelation 1 Invoke the Firemind 1 Mass Manipulation 1 Ruinous Ultimatum 1 Villainous Wealth 1 Wargate Enchantments (7) 1 Braid of Fire 1 Smothering Tithe 1 Temur Ascendancy 1 Unbound Flourishing 1 Whirlwind of Thought 1 Wilderness Reclamation 1 Zendikar Resurgent Artifacts (9) 1 Arcane Signet 1 Chromatic Lantern 1 Chromatic Orrery 1 Doubling Cube 1 Elementalist's Palette 1 Lightning Greaves 1 Orochi Hatchery 1 Sol Ring 1 Swiftfoot Boots Lands (36) 1 Plains 1 Swamp 2 Island 2 Mountain 4 Forest 1 Alchemist's Refuge 1 Arcane Sanctum 1 Arid Mesa 1 Command Tower 1 Crystal Quarry 1 Exotic Orchard 1 Frontier Bivouac 1 Godless Shrine 1 Indatha Triome 1 Ketria Triome 1 Opulent Palace 1 Polluted Delta 1 Raugrin Triome 1 Rejuvenating Springs 1 Reliquary Tower 1 Rockfall Vale 1 Sacred Foundry 1 Seaside Citadel 1 Spara's Headquarters 1 Steam Vents 1 Stomping Ground 1 Temple Garden 1 The World Tree 1 Watery Grave 1 Windswept Heath 1 Zagoth Triome Braid of Fire is a silly card and it's going to do silly things in this deck

Spells with cascade care about their own mana value, but discover spells define X themselves
Then you should go see the Mechanics article
Card Name
This one sees some play in Commander, best paired with creatures that can turn their inherent direct damage abilities into a massive blowout
Along with the Commander deck and Turtle Team-Up, the set includes a bundle, draft night box, play boosters, and collector boosters