Urza does have a lot going in his favor in comparison to other mono-colored decks, notably getting to actually play counterspells and Rhystic Study
So on first glance you're right, Mishra seems like an awful choice to pick as a commander, but there's something really neat to be reaped here if you look at the ability really close
Yes, this came at the expense of Limited play, but if that was the cost of staying in business, that's what they had to do
Most valuable cards in Fallout View the full price guide $671.38 Intelligence Bobblehead Fallout $641.26 Agility Bobblehead Fallout $609.06 Strength Bobblehead Fallout $509.79 Endurance Bobblehead Fallout $509.77 Charisma Bobblehead Fallout $410.92 Perception Bobblehead Fallout $366.31 Luck Bobblehead Fallout $217.95 Sol Ring Fallout More cards by Kim Sokol $33.58 Shadow in the Warp Warhammer 40,000 Commander $17.37 Shadow in the Warp Warhammer 40,000 Commander $12.44 Winged Boots Forgotten Realms Commander $11.35 Winged Boots Forgotten Realms Commander $10.40 Winged Boots Outlaws of Thunder Junction Commander $7.61 Arcane Signet Warhammer 40,000 Commander $7.41 Return to Nature Innistrad: Double Feature $5.81 Idolized Fallout SetFallout Most valuableTop 100 Magic: The Gathering cards You might also like...
Here's some of Wizards' explanation for the banning: The last turn-three deck that remained was Dredge...Dredge is not known for being fun to have around
