It has been repeatedly confirmed that Metalborn from Scardinal would have an easier time using their magic on other planets/Shard worlds.
So, I am curious what the effect of mixing Investitures from other worlds with Alcomancy/Feruchemy.
To start off this discussion :
1. Could an Alcomancer burn a piece of metal invested with Biochromatic Breath from Nalthis?
2. Could a Ferchemist Bloodmaker store health from Stormlight on Roshar?