Not my original idea, but I would just like to point out that this is probably the fastest deck in the current Expedition meta. Got me from 0/100 Diamond I to Master in 30 minutes sharp:
As for possible changes, maybe 2x
Solfire would be better than
Bullseye as it can kill the pesky Vikrums. Additionally, I am not sure whether
Endangered Qirin or
Jeering Yeti is a better 2-drop, but both are definitely viable.