so im playing a alch beastmorph/vivi lv 3.wondering what i need so i can use my weapon(axe from my back story)and use my full bite and both scracthes in a one turn. My dm figures i need some kind of feat to use them all but im new to pathfinder so im unsure what i need
You don't need anything special, but the hand used to make the axe attack can not be used to make a claw attack. In addition all of the natural attacks take a -5 penalty when using a weapon.
You can take the monster feat Multi-attack to make the -5 into a -2, but the moment you add a manufactured weapon (axe) to your attack routine all your natural attacks become secondary. However, the weapon attack will still benefit from iterative attacks.