KarinsDad said:
Claws of the Beast does damage under certain circumstances. You hit with an attack roll.
Not much different than Scorching Ray.
It's completely different. Claws of the beast gives you claws, with which you attack. Scorching ray magically scorches things, and if you decide you want to actually hit something with that ray, you make an attack roll. Nothing about casting claws of the beast causes you to pick up those d4s. Whereas scorching ray causes an attack just by being cast.
Other differences:
Scorching ray affects one or more targets, claws affects you
Scorching ray causes magical damage, claws causes claw damage
Scorching ray does a certain amount of damage dictated by the spell, claws does damage as claws as described by the spell and is affected by size increases.
Scorching ray won't work on a golem, claws of the beast likely will.
Scorching ray is a ray spell that causes an attack, claws of the beast is a power that simply causes you to grow claws.
Scorching ray allows you to cast and blast, claws of the beast is specified as a swift action and attacking with the claws is done as per any other natural weapon.
I would compare claws of the beast with polymorphing into a dire tiger. Can you empower and maximize that?