I have been troubled for a while about the probable fate of the ancient guardians of humanity. The immortal kandra are a people cursed with an inability to make more of themselves without killing others. Since all kandra are avowed "ahem MeLaan" pacifists the species is doomed to extinction unless someone figures out how to make spikes for them without killing people. I think I may have found a way.
Recently we have learned of the potential of feruchemical aluminum. The ability to store identity. According to VenDell experiments indicate that while storing identity you can access anyone's metalminds. This made me wonder. Can you also access their spikes? After all a spike is not so different from a metalmind. It is just investiture stored inside a alomantically viable metal(I would appreciate thoughts on this). You tap the spike gaining its ability and put that in an unsealed metalmind. After that it is a simple matter of compounding a new identity free spike. All of which can easily be done with the right metals and bands of morning.
Would this work? If so could you make new spikes for powers? Are there other end positive functions of this magic system?