The breakthrough list was just homebrewed one day, and people suddenly realized how powerful it is
LGS singles cases are also worth checking
When you are nearing a complete deck and you have just a few slots left but several holes still to plug I am often finding Looter to be a go to guy
Not background necessarily, but some other line of text that says something along the lines of Whenever you sacrifice a Treasure token, give a creature a +1/+1 counter and trample until end of turn. That would make it a lot more interesting and powerful, but I suppose not every card needs to be great

Rarity: R Card Type: Land Artist: Jung Park Name: City of Brass Finish: Regular Card Number: 15/26 Set Name: Modern Event Deck Singles Related Products City of Brass Chronicles Moderate Play, English 1 In Stock Moderate Play, English 1 In Stock Moderate Play, English 1 In Stock Heavy Play, English 1 In Stock City of Brass 8th Edition Light Play, English 2 In Stock Light Play, English 2 In Stock Light Play, English 2 In Stock Heavy Play, English 1 In Stock City of Brass Double Masters 2022 NM-Mint, English 1 In Stock NM-Mint, English 1 In Stock NM-Mint, English 1 In Stock View all 6 options Kataki, War's Wage Magic Modern Event Deck Light Play, English 4 In Stock Light Play, English 4 In Stock Light Play, English 4 In Stock Soul Warden Magic Modern Event Deck NM-Mint, English 3 In Stock NM-Mint, English 3 In Stock NM-Mint, English 3 In Stock Windbrisk Heights Magic Modern Event Deck NM-Mint, English 4 In Stock NM-Mint, English 4 In Stock NM-Mint, English 4 In Stock

If you are building a Simic ramp deck, this is the top-end payoff you want