This is the deck I'm mostly using to get to Masters right now. I really like it. The best opener is Initiate into Teacher and a Borderlands Lookout.
Skycrag Scalebreaker I'm often happy to play. The one-ofs are cards that I think are... situational, like Sodi (very rarely will you get TTTPPP on 3), and Albon Roa. The card I'm least sure about is Entangling Vines. It helped a lot in Skycrag decks, but with Permafrost already in the market, it's a waste of slots.