Hearthpwn

This is a pretty good-feeling Proving Grounds deck. It's definitely strong when you hit your proving grounds.

Undoubtedly with a card like proving grounds, there will low rolls. I feel like with this deck, even the low rolls are still very good plays for six mana. I'd say double Imprisoned Antaen feels the worst, and pulling Masked Reveler can be underwhelming, especially if the opponent has nothing on board, and the only minion that can kill it is Neptulon the Tidehunter.

Neptulon will always kill the other minion, but I think summoning neptulon for six mana is totally fantastic. Abominable Lieutenant can be pretty obnoxious for the opponent to deal with. 

Overall, I've had a lot of fun and success with this deck in diamond 3-5 ranks. This is obviously a high roll deck and not going to be great for consistent climbing, but we can get proving grounds on turn six pretty reliably. using Bone Glaive and Topple the Idol on five to search the bottom of the deck. Dispose of Evidence is good for shuffling the fatties back into our deck and shuffling the entire deck, giving a brand new set of 3 cards to dredge up. 

Have fun with this deck. It's powerful i promise =)

Here are a few games to show how the deck is played.