Hero: Bandit Queen
Despite being the most straightforward gameplan of the event decks I built, this caused me the most trouble building. While this list definitely works and I had a successful 7-2 run with it, I'm still very unsure of what the optimal build would look like. You could reduce interaction and try to litter the board with more small units to take advantage of Queen more. You could remove some of the conditional cheap interaction for hard removal like Deathstrike on the top end, just to guarantee a clear path to keep attacking. You could run some more impressive top-end units, like Yushkov or Impending Doom. You could go deeper on burn with cards like Burn Out. There are also like a dozen reasonable options for the market slots. And the power base is tricky as well, because undepleted power is so important for a deck this aggressive, but it also does a great job of making use of both Shugo and Cabal Standards as well as Granite Waystone (undepleted, but interferes with Seat of Chaos), and you want dual lands to reliable cast some powerhouse cards like Champion of Chaos and Vicious Highwayman. Steering clear of cards with double or triple influence requirements might mean you could run Diplomatic Seal, which would help you cast your 1-drops on turn 1.