The opposite can also happen where players become mana starved and have too little mana to play their spell cards
Each of these cards are based around 1 of the ally 3 color shards
Of the four different frames, the red, green, and blue Hidden Neon versions will only be available in Kamigawa: Neon Dynasty Collector Boosters
The three Illumineers from the Lorcana story gather around a lorebook, as ghostly sheets of scroll filled with mysterious symbols swing from the air
Even without it, I might find tables that want to kill me first and then get on with a "normal" game of EDH, but if Havoc Festival hits the field I might as well twirl my mustache and give the table a little "bwa ha haaaa" because there will be no more pretending that I'm trying to play nice

Abomination Acolyte of the Inferno Aisling Leprechaun Ashmouth Hound Assembled Alphas Barrow-Blade Basalt Golem Catacomb Dragon Cockatrice Corrosive Ooze Dead-Iron Sledge Deathgazer Dread Specter Dream Fighter Elven Warhounds Engulfing Slagwurm Evil Eye of Urborg Flailing Drake Flameheart Werewolf Goblin Flotilla Gorgon Recluse Grasping Giant Gustcloak Savior Infernal Medusa Inferno Elemental Infinite Authority Kessig Forgemaster Kjeldoran Frostbeast Kolaghan Aspirant Lim-Dl's Cohort Mammoth Harness Mirror Shield Ogre Leadfoot Order of the Alabaster Host Ornery Goblin Phyrexian Reaper Phyrexian Slayer Quagmire Lamprey Rapid Fire Rock Basilisk Sawtooth Ogre Sensei Golden-Tail Skewer Slinger Somberwald Vigilante Stone-Cold Basilisk Sylvan Basilisk Talruum Champion Tangle Asp Thicket Basilisk Tolarian Entrancer Treefolk Mystic Venom Venomous Dragonfly Witherscale Wurm Wizened Githzerai Wooden Stake Zombie Boa