It is surprisingly effective at helping to race decks like Tron and Dredge in Game 1 and can help finish off Izzet Phoenix players after they stabilize behind a wall of recursive 3/2s
Legendary Creature - Dragon Spirit Removal (CTRL to add secondary) Theft Brainstealer Dragon Flying At the beginning of your end step, exile the top card of each opponent's library
Fortunately for you and unfortunately for your opponents, because Blightsteel Colossus is indestructible, if they dont have an exile card, a creature 11 power or greater, or a horde of creature tokens with a total power of exactly 11, the game is done
Ouroboroid shines in any token or counter-focused strategy
I know this was the case during the EX era when Devir was printing cards, but not sure for the SwSh era
it's more of a brewer's commander