If you really really want to be a claw fighter, be a shifter psiwarrior with claws of the beast. Simply rationalize it as you tapping into your natural reserves and forcing the transformation upon yourself. If you pick your powers carefully, you can completely ignore the fact that it is a psionic class. Just stick to psychometabolic powers. Possible suggestions:
1st level:
Claws of the Beast
Thicken Skin
Metaphysical Claw
2nd level:
Animal Affinity
Darkvision
Lion's Charge (gotta be able to pounce with your claws)
At 3rd level and higher, the best powers of choice start going into the more obviously magical/psionic realm, but you can always multiclass in something else. A Psiwar4/BarbarianX/WeretouchedMasterX would probably work out fine for you. Claws of the beast has an hour/level duration for a measely 1 PP (more for better claws obviously). Also see if you can convince your DM to allow a psionic equivalent of "practiced spellcaster".
1st level:
Claws of the Beast
Thicken Skin
Metaphysical Claw
2nd level:
Animal Affinity
Darkvision
Lion's Charge (gotta be able to pounce with your claws)
At 3rd level and higher, the best powers of choice start going into the more obviously magical/psionic realm, but you can always multiclass in something else. A Psiwar4/BarbarianX/WeretouchedMasterX would probably work out fine for you. Claws of the beast has an hour/level duration for a measely 1 PP (more for better claws obviously). Also see if you can convince your DM to allow a psionic equivalent of "practiced spellcaster".