Tortankum

Im pretty sure that Brandon has actually said that the metal mind would need to be absolutely gigantic to store enough weight, like the size of planets gigantic.

Is there a way to find out what number you got?

Ruin needed to be absolutely sure that nobody knew he was pulling the strings. If there was any suspicion and Vin didn't release him as a result then all that planning would be wasted.

@Jondesu Thank you, that was the answer I was looking for. That makes perfect sense now, although somewhat unfortunate because it means someone like Vasher cant tap an unkeyed nicrosilmind and use it to power awakening. So in order to get a medallion with a single power, it would have to be created by a ferring/misting who either has a feruchemical aluminum spike, or one wearing another medallion with nicrosil/aluminum. Or a full feruchemist but we dont know if they can specify which powers they put in. And the one last unknown is how everyone seems to be able to tap the nicrosilmind in the first place.

Thanks for the explanations, but im still slightly confused. Why is Wax able to use the investiture tapped from Nicrosil in the medallion to tap warmth but not healing or any other power from any other unkeyed metalmind. I dont see a difference between the unkeyed brass metalmind in the medallion and Wayne's unkeyed gold metalmind.

I could have this wrong, but couldn't Wax have been able to tap Investiture from his Southerner Medallion and use it to heal up with Wayne's gold band?