@Fernn you seem to be missing the part where the weapon GAINS 10ft. So that fist he is "throwing" now has a range of 10ft; also last time I checked an "unarmed strike" ,which is what a punch is, was a traditional weapon.
There is a goblin only barbarian archtype call Feral Gnasher that is all about biting things. It is really fun in my opinion; you can find it in the Advanced Race Guide.