One of my players recently rebuilt his barbarian as an abyssal bloodrager. Naturally, he got two claws from his bloodline. He is built to fight with two handed weapons, which would normally cause him to forgo those claw attacks. However, he argues that with a called weapon, he could conceivably do both attacks, call his weapon as a swift action, then do his greatsword attack.
Does this fly? Does making his natural attacks with both of his hands while they're free cause him to forgo his weapon attack? I'm leaning toward yes, but I'm not totally sure of what to make of it.