Breya in Modern for $25* (Modern)

Okay, so what does Invent Superiority do? It recurs artifacts and abuses metalcraft / affinity for mad value. So here we'll do the same.
Galvanic Blast and Dispatch remove their mid game threats after you've dropped the small chump creatures. Thoughtcast refills your hand if it gets too low. Win with some slow Myr beats, some Thopter Foundry / Trading Post value, some Marionette Master dome-blows, or some Ghriapur Aether Grid shenanigans.

*$50 if you get the sideboard, which really is optional since you're probably not gonna take this to a tournament.
Sideboarding is if you really want to take it to an FNM environment that has white; Stony Silence and Relic of Progenitus / Tormod's Crypt will take away the "value town" options and the "graveyard bullshit" options respectively, so we need to stop those from hitting us. Swap the Palladium Myr with Etherium Sculptor to get the mana back, take out the Post and the Foundry to grab the Needles and the Fabricate, and then depending on what cards underperformed the most, try to throw in the Thopter Spy Network to get back some creature token generation. Witchbane orb and Ethersworn Canonist are in there in case of burn / storm, Tidehollow Sculler and Canonist kind of help against infect. If you're up against affinity, I'm sorry, but they're just the better version of you, so hope they draw poorly, try to Sculler away their Cranial Plating. As for other matchups, I guess Witchbane helps against control? That's about all I know.