Quote:
Originally Posted by Nosforontu
Both are niche cases true, but the impossibility of mana existing on world x could make far less usable for the Cabal for instance, which might also be an important background element for that world.
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In general, magical means of world travel probably cannot reach worlds where mana cannot exist. Actually, it's hard to come up with a coherent system of dimension travel that doesn't have some sort of meta-rules controlling all possible reachable worlds, which probably means that if mana can exist anywhere, it can exist everywhere, though possibly subject to being immediately wiped out due to field interactions of some sort.