Some questions about Hemalurgy

[Kinnsayyy]

I have a few questions I was wondering about Hemalurgy. If anyone has any answers (probably not since barely anything is known) or theories I would love to hear them. 

 

If someone were to find Sazed's actual body, could they use a spike to steal the power of Harmony? 

Can you spike a dead body and still get the power? 

Atium spikes steal any power on Scadrial, but would you be able to use them to steal different forms of magic such as surge binding? Or would you need to use a spike from the body of the shard of the planet? 

Can you steal Breath with a spike? If yes, could you steal the breath from Nightblood? 

What would happen if you spiked Hoid? 

[Weltall]

Bodies sublimate upon ascension so in the Physical sense there isn't a body to spike. They only reappear when the Vessel dies or gives up the Shard.

Brandon has confirmed that there's a time window in which you can spike a corpse and get something out of it Hemalurgically.

We don't know what needs to be done to steal powers not native to Scadrial but since atium is able to steal every possible power/attribute that we know of, it's likely that it could steal non-Scadrian powers on its own. There may be a more recent WoB I'm not aware of but I know he's RAFO'd questions about the mechanics of stealing other powers.

I'm pretty sure that you physically can't spike Nightblood in the first place and it 'corrupts' the Investiture it consumes (we know he doesn't care about the form the Investiture takes, it's all fuel to him) so you probably wouldn't get anything useful out, or you'd have to find some sort of hack to make it useful. As for stealing Breath with Hemalurgy normally, I don't think we know but it seems redundant since anyone can be gifted Breath and getting it automatically rewires your spiritweb to allow you to Awaken so it's not really a power you need to steal.

Given that Hoid can apparently heal damage to his soul perfectly (to the point that he doesn't think a Shardblade would affect him) I suspect he could heal back any spiritweb damage a spike might do to him. And his spiritweb is probably so crazy that I suspect he's effectively immune to getting spiked. But we don't know for certain. We do have a WoB that Hoid doesn't use Hemalurgy for any of his own powers and would prefer not to open himself up to Shardic influence so he seems capable of using spikes at least, he just doesn't want to..