The name perfectly encapsulates the effect - it counters any target spell, period
For example, lets take that longer search above where were essentially looking for a commander with Blue in its identity that cares about flying, combat damage, and drawing cards
During each player's turn, that player may cast a spell from among the cards they don't own exiled with Ian Malcolm, Chaotician, and mana of any type can be spent to cast it
There will be no basic lands and no tokens
Creatures (23) 1 Myr Retriever 1 Solemn Simulacrum 1 Goblin Welder 1 Broodstar 1 Trinket Mage 1 Auriok Salvagers 1 Arcbound Crusher 1 Disciple of the Vault 1 Sharding Sphinx 1 Filigree Angel 1 Wurmcoil Engine 1 Thopter Assembly 1 Pia and Kiran Nalaar 1 Hangarback Walker 1 Smothering Abomination 1 Filigree Familiar 1 Master Trinketeer 1 Metalwork Colossus 1 Reckless Fireweaver 1 Marionette Master 1 Scrap Trawler 1 Treasure Keeper 1 Maverick Thopterist Planeswalkers (3) Lands (28) 3 Plains 3 Swamp 2 Mountain 3 Island 1 Vault of Whispers 1 Seat of the Synod 1 Great Furnace 1 Ancient Den 1 Vivid Creek 1 Vivid Meadow 1 Arcane Sanctum 1 Crumbling Necropolis 1 Rupture Spire 1 Bojuka Bog 1 Transguild Promenade 1 Nomad Outpost 1 Mystic Monastery 1 Myriad Landscape 1 Foundry of the Consuls 1 Inventors' Fair 1 Spire of Industry Spells (45) 1 Sol Ring 1 Meekstone 1 Darksteel Ingot 1 Skullclamp 1 Wayfarer's Bauble 1 Summoning Station 1 Salvaging Station 1 Roar of Reclamation 1 Grinding Station 1 Blasting Station 1 Nuisance Engine 1 Dimir Signet 1 Terrarion 1 Izzet Signet 1 Orzhov Signet 1 Azorius Signet 1 Rakdos Signet 1 Chromatic Star 1 Coalition Relic 1 Scourglass 1 Relic of Progenitus 1 Open the Vaults 1 Expedition Map 1 Elixir of Immortality 1 Brittle Effigy 1 Furnace Celebration 1 Nihil Spellbomb 1 Spine of Ish Sah 1 Ichor Wellspring 1 Mycosynth Wellspring 1 Conjurer's Closet 1 Trading Post 1 Dictate of Erebos 1 Thopter Spy Network 1 Tamiyo's Journal 1 Magnifying Glass 1 Confirm Suspicions 1 Underhanded Designs 1 Renegade Map 1 Implement of Combustion 1 Implement of Examination 1 Hidden Stockpile 1 Efficient Construction 1 Universal Solvent 1 Servo Schematic The thing which jumped out and grabbed me is that hes running 28 lands
The final card is, naturally, Sol Ring, the most-played card in Commander
