The absolute star of the deck is the brand new Northshire Farmer with his farm (and a lot of hope).

The main objective of the deck is to copy and buff the beasts in the deck, carefully chosen: Wolpertinger to generate two buffed pieces, Augmented Porcupine to deal face damage or clean the board, Encumbered Pack Mule to get extra pieces to keep pressure on the board and Moonfang to annoy the opponent with a hard-to-remove piece, especially for control decks with limited removal.
Dire Frenzy and Northshire Farmer are key to spawning additional beasts in the deck, in most cases also gaining a buff.
The remaining cards in the deck are for drawing and buffering these beasts (Scavenger's Ingenuity, Ramming Mount, Warsong Wrangler) along with a slightly more defensive spell pack associated with Barak Kodobane, with the aim of cycling the deck faster in search of the buffed beasts.

The mulligan should include the beast that is the most wanted to be buffed and shuffled into the deck, depending on the matchup, and dire frenzy / northshire farmer. Alternatively, any card for drawing is great for trying to get to the combo