Sharing my deck that I've had a pretty good success so far and was actually able to 7-0 at one point. It's not an optimal deck since I wanted to add Shen-ras in there and another Clockroaches but these is just what I have so far. I don't play that often and sometimes i just log in to get that free pack or play some jank deck in gauntlet.
During the begininning of the event, I noticed how Silence plays an integral role in this event so I decided to chuck a lot of Silence cards in my list. Amri's Choice is a great finisher and adding a fourth one is not a bad idea. It can also be played defensively and silencing a unit before bouncing it off to your opponent's which sometimes will not be played anymore. Shush looks like an odd choice but being able to shutdown opposing clockroaches or smugglers is amazing and sometimes help you win games.
I would always grab Shen-ra Speaks out of the market first since this event really promotes aggro strategies and being able to reset at the right time would oftentimes result in your opponent scooping the game. The card choices are flexible enough except for the aformentioned card.
Have fun tweaking the list to your liking. Just remember. The deck runs as aggro control instead of a full on aggro. Playing your cards at the right time will easily win you matches. Enjoy!