My stock gauntlet grinder for a while now, has served me well.
Deck is super straightforward to play. If you get in trouble versus the really quick decks you can use smuggler to grab a board wipe or Stormhalt Knife, though most of the time you won't even need it as you bury them in two-for-ones or stall the board while a hat-wearing Bartholo gets it done.
The only important tip is always mulligan a hand with less than two power. Even if one of them is a crest and you have a smuggler to get a fourth power if you can only draw one more, it just feels like I always get screwed when I try to push it like that.