Transformation spells and weapons

[Krico]

Basically my question is what can wield weapons (and for that matter cast spells with verbal or somatic components) and what can't. Undead form spells and monstrous humanoid spells obviously could, assuming they have humanoid hands. Beast shapes can't (against assuming no humanoid hands or ability to speak). Can form of the dragon? Can dragon claws wield a sword or perform somatic components? How about elemental forms? Can a hand made of air or fire swing an axe?

[Samasboy1]

Polymorph general rules

These are in addition to any specific rules in the spell used itself.

So, for weapons...

Quote:

When you cast a polymorph spell that changes you into a creature of the animal, dragon, elemental, magical beast, plant, or vermin type, all of your gear melds into your body.

For spellcasting...

Quote:

While in such a form [This refers to the previous list], you cannot cast any spells that require material components (unless you have the Eschew Materials or Natural Spell feat), and can only cast spells with somatic or verbal components if the form you choose has the capability to make such movements or speak, such as a dragon.