thats a good idea. and seeing as they are "extra arms"... spell flower can apply to them. also, as im assuming that during a grapple these claws can make attacks while i have the creature pinned... thats extra damage on top of balor nimbus, babou slime....
arms of plenty after enlarged? does that up the damage of the limbs to 1d8?
when i cast fist of stone... does that damage then increase to 2d6?