Hearthpwn

I don't know which part of the ladder you're on, but all I see is aggro :P

^ brewmaster and scarab are good idea

Good idea with the second Entomb! It might be a bit redundant though since this deck already wins pretty hard against control and there's already tons of hard removal (like mind control). But definitely Explosive sheep, Thoughtsteal, Abomination, and Sylvanas are good choices IMO.

Excavated Evil might be good, it kinda wrecks aggro hard and it forces a card into their deck that they don't want. But I think it might be a dead card against control when dealing 3 to the board wouldn't clear much and adding a card to their deck is the opposite of your intent.

Really fun deck, and good too! I've been using it in ranked for a good win rate. (8-1 so far after changes) :D

However, I disagree with many of your card choices. This deck seems to function like a mill deck, but it has too much card draw to work well against a lot of control decks. I've replaced loot hoarder, acolyte, gnomish inventor, and harrison to avoid drawing myself out before my opponent.

Been trying explosive sheep with great success, it works well against aggro and can be played with a ping from your shadowform as a consecration :)

Some other cards worth trying: Prophet Velen for a 6 dmg hero power. I've tried abomination but I don't like the 2 dmg to my face. Sylvanas works well as a 2-for-1 against control and a strong play against aggro. Acidic swamp ooze could work really well against some decks in place of harrison. Also Icehowl might be really good, I know Kripp likes to use it in his mill druid deck which is very similar to this. Thoughtsteal can be great against both control and aggro most of the time... and I once draw the FoN Savage Roar combo to kill my opponent early :D