So what the Beastial Aspect class ability says is
At 4th level, whenever a rageshaper gains a natural attack through the use of a polymorph spell, he can increase the damage done by that attack by one die. If the spell grants multiple natural attacks, the rageshaper must choose one kind of natural attack for the ability to enhance. At 9th level, if the rageshaper’s altered form grants him a new mode of movement, that movement’s base speed increases by 10 feet. This is an enhancement bonus. If the rageshaper’s bloodrage powers already grant natural attacks or alternate modes of movement, then the bonuses granted by bestial aspect also apply to these bloodrage powers.
So I am assuming that if a power gives you both claws and a bite, you still have to pick one of the two to enhance with this ability. My friend argues that because it specifically grants it to "these bloodrage powers", it applies to all natural attacks gained through bloodrage powers.
Only one natural attack per spell is boosted, this is clear. I would think this means only one natural attack per bloodrage power. So if bite and claw come from separare powers both can be increased.
