Hearthpwn

The minion lineup looks about right, but the spell line up can use some real changes. Devolve and Totemic Smash aren't that helpful for what you're trying to get to. They're removal options, when realistically, you're trying to close the game up by around turn 5-6.

Considering you're swarming the board, running Storm's Wrath is far more useful, and gives you a real comeback off of goliath, while also synergising well with your 1 drop cards. Also Serpentshrine Portal is an incredibly flexible card that can be used as tempo, removal, and game ending damage.

I'd also probably recommend cutting a copy of Bloodlust, replacing it with Vessina. The reduced mana cost makes her more flexible, and will clog your hand up less. And can still just be played for tempo. 

Another change that might be worth considering is I don't know how good Trick Totem actually is. Obviously it's great for the curve, but Flametongue Totem is a very consistent totem that has won me a lot of games back in AoO for me. 

The last cards that are worth considering, but I don't know how to fit them in would be Instructor Fireheart as a flexible game ender, that can basically be the god tier topdeck, Flamewreathed Faceless as a huge stat swing on 4, that still doesn't lock you out of your strong 3 drops the turn after, and Cumulo-Maximus as a tempo swing and potential game ender.

Hope this gives you some ideas, and helps a bit. I wish you luck with your tinkering.