If you want to know what a truly disgusting Counter-Top list looks like in Modern, check out BBDs version from the No Ban List Modern Open from 2018
Part of what is keeping the value of City of Brass high is the popularity of the Old School format, which prevents you from using cards that were printed past 1994, making it a valuable land
Adding an enchantment diversifies your card types for delirium and works with cards like Six and Dundoolin Weaver that care about permanents
But at its worst, its a 3-mana 1/1 flier that dies to spot removal, flicker effects, or a non-morbid Tragic Slip
Carve your path to victory
That said, there isnt a control deck out there that should leave home without three copies of Aether Gust, with some in the maindeck, in order to defeat the top three decks of the format.