Turn 1: Myra's Unstable Element
Turn 2: Cataclysm
Turn 3: profit...
This is why I never dust non-nerfed cards (even duplicates) unless I urgently need the dust, the exception is cards that are so bad they have no chance of ever being played or nerfed further (i.e. Moroes). The nerfs have been a lot more common recently, so this strategy does pay really well. I'm currently sitting on 20k dust from last year's nerfs alone (I've only been buying the pre-orders).
So, having played early access battlegrounds, I wanted to share my thoughts. While overall a fun mode, there isn't enough dimensions to keep most players entrained past initial week in my opinion. Already in 1 day of playing I started seeing the same end-game patterns over and over. The main end-game strategies are very repetitive (I really hope the complexity of this mode increases to keep it enjoyable long-term):
1. Go all in on beasts: Get Mama Bear and beasts that spawn more beasts (i.e. Rat Pack) and a cleaver or 2 (Cave Hydra)
2: Go all in on mechs: Get Junkbot and mechs that spawn more mechs (magnetize them) and a cleaver or 2 (Foe Reaper 4000), sound familiar?
3: Go all in on demons: Get Wrathweaver and rotate a bunch of demons between rounds to buff him, eventually get Annihilan Battlemaster with ~200 health (optionally get Malganis temporarily so Wrathweaver stops hurting you)
4: Go all in on murlocs: Try to discover poison + divine shield from Gentle Megasaur for every minion on board, or give it manually to your murlocs through other battlecries.
Oh, and of course, regardless of which of the only 4 endgame strategies you pick, buff/max out your Nightmare Amalgam, giving it a ton of health, poison, divine shield, etc. and magnetizing anything you come in contact with.
Look on the bright side, he uninstalled the game for the last time, or so he claims.