The main synergy of this deck is the Hunting Mastiff + Scavenging Hyena and Stonetusk Boar + Dire Frenzy. And also, you need to save your Crackling Razormaw for the boars and hyena. Try to get Windfury or +3 Attack. Unleash the Hounds is a good way to buff your hyena as well.
Edit 1: In order to survivability aginst the actual aggro meta (rogue, druid and paladin) I switched one Freezing Trap for one Explosive.
Edit 2: Ironically I removed some "removal" cards and added more consistent choices.