A card like Gollum, Scheming Guide is just fun as your commander
CEDH Decks are built to win in the competitive metagame
Planeswalkers (18) 2 Karn, Scion of Urza 1 Teferi, Hero of Dominaria 4 Teferi, Time Raveler 3 Saheeli, Sublime Artificer 4 Narset, Parter of Veils 4 Sarkhan the Masterless Lands (25) Spells (17) Sideboard Planeswalkers (19) 4 Teferi, Hero of Dominaria 2 Dovin, Hand of Control 1 Liliana, Dreadhorde General 4 Teferi, Time Raveler 3 Kasmina, Enigmatic Mentor 4 Narset, Parter of Veils 1 Ugin, the Ineffable Lands (25) Spells (16) Players wont end up at the same place, though, at least not at first
Nothing says trouble like a reedy hiss with a hint of liquid gurgle