The other three cards will be non-foil versions

Current Game Changers list Biorhythm Drannith Magistrate Thassa's Oracle Urza, Lord High Artificer Jin-Gitaxias, Core Augur Opposition Agent Tergrid, God of Fright Vorinclex, Voice of Hunger Kinnan, Bonder Prodigy Yuriko, the Tiger's Shadow Winota, Joiner of Forces Grand Arbiter Augustin IV Enlightened Tutor Cyclonic Rift Force of Will Fierce Guardianship Mystical Tutor Coalition Victory Vampiric Tutor Ad Nauseam Serra's Sanctum Gaea's Cradle Ancient Tomb Glacial Chasm The Tabernacle at Pendrell Vale Smothering Tithe Rhystic Study Underworld Breach Survival of the Fittest Expropriate Demonic Tutor Imperial Seal Jeska's Will Braids, Cabal Minion Bolas's Citadel The One Ring Chrome Mox Grim Monolith Lion's Eye Diamond Mox Diamond Mana Vault Teferi's Protection Humility Narset, Parter of Veils Intuition Consecrated Sphinx Necropotence Panoptic Mirror Orcish Bowmasters Notion Thief Deflecting Swat Gamble Worldly Tutor Crop Rotation Seedborn Muse Natural Order Food Chain Aura Shards Field of the Dead Mishra's Workshop Gifts Ungiven Farewell Brackets explained The beta brackets system is a tool to help Commander players talk about the gameplay experience they want to create with their deck

Finally, Niv Mizzet deals additional direct damage, and Crackling Drake grows with each spell you cast
At least the main Commander gives you an option to dig for better or more situationally appropriate cards in that given scenario, but once its gone, theres not much the deck can do to stabilise itself
That $0.30 flat fee is brutal on $1-$2 cards
You will not continue to exile and shuffle your library forever