This has been the deck Ive been most successful with in Alchemy so far, and I highly recommend it for climbing the ladder
As it is, its really good in squirrel decks like Chatterfang or Hazel, and you can even conjure it with Euru, Acorn Scrounger on MTG Arena
You can always make your artifacts into massive beaters, but theres plenty of trickery to be had here
Olivia Voldaren is one of those cards that you really struggle to lose with if you get to untap with her in play
I hadn't planned on buying anything from this set
The biggest danger is that almost every deck sideboards Karn, rather than that Karn just beats everyone, and I think theres a good chance that wouldnt force them to ban Karn, although theres a small chance that that would push the price of Karn high enough to chase some people out of the format.