ok this may be more in the realm of comic books then Dresden, but i was wondering, if modular abilities or shape shifting, or a combination of the two would let you grow cold iron claws ( ie wolverine), or say grow spikes all over your body, that would meet catches for some toughness? or say turn your body to iron, you could say it looks like armor to give it more of a Dresden feel. if anyone could give me some opinions or suggestions. i love the idea and would like to know how to make it work.