How does Nightblood work on Roshar?
Well Nightblood feeds on Investiture, which is the general life-force/magic-force in the cosmere and so he can feed on basically any source of magical energy.
And do other magics work on other worlds?
I’ve been describing it lately more like you see DC current and AC current, where they’re similar things but slightly different. It is possible to make magics work on other planets, some it’s easier than others.
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