Hearthpwn

Pretty easy boss, so no big words this time. His hero power, Necrotic Aura, is free and deals 3 damage to the face. So either you are on the clock, or you are on the slightly larger clock if you picked priest (or you play P2W control warrior). I went with the first option and collected this deck, which came down from its original midrange form to the necessary build, which strategy is simple as bactery - Unleash the hounds Abuse the Spores.

I feel like this version is a bit more stable than aggro huntard, modified to the similar state. Elven Archers shine brighter than ever, board is easily flooded with minions with 9+ attack and mostly 1 hp. River Crocolisk, Oasis Snapjaw and Houndmaster stay to make Sporeburst less effective against us. Pft, anyway, it brings us another spore! So beautiful...

Prefer board clear over face because of mentioned slight vulnerability to Sporeburst, unless you have clear plan to execute Loatheb this or next turn. Don't be afraid to flood the board, just think a bit ahead and have refill options ready. If boss uses his Poison Seeds for great effect, that may be catastrophic, but usually we should be pretty ok with that.

The deck plays itself very fast and has huge chances to succeed, so I recommend everyone to use similar strategy. I won with its first iteration, so many other options still may and should be considered. If you have any questions/suggestions/angry reviews, please, write them down in the comments. GLHF!