I have tried the upped version against level 3. It works against all the new level 3 decks. So far, 25 games played and 25 wins. A litlle slow, games went from 6 to 13 turns to win (13 turn was against earth deck, 2 +50 stone skin)
Also have enought damage dealers to resist the deck with rewinds(rewinds are a pain to steam machines)
Best initial hand involves having an abyss crawler, since you don't have enought fire quanta to steam the machines until turn 3,so it is no point to play it first turn.