How exactly would new nations be discovered? Is this in an alternative universe, because humans have more or less mapped the whole world, and there certainly aren't any big nations we haven't already found. A small tribe, sure, but not a nation.
Interesting, but the idea that he was the first superhuman to be known is kinda silly, since there is no reason why other superhumans would be in hiding. Maybe a couple decades ago they were strung up and killed like the witch trials, and it scared all the other superhumans?
Seems good. But I believe you missed one form of income: raiding. Sending your army against another player or NPC to take their coins/resources and add them to your own.
For magic travel, maybe there are several 'hubs', and each folk nation is usually fairly close to one for convenient travel. A hub would be a hole in the ground or something that folk can jump into and teleport into other hubs. But folks cannot be near hubs for extended amounts of time, so armies cannot build fortifications or just camp out waiting for an enemy army. Just a suggestion I think could work.
A question: how are the folk nations going to be travelling to attack each other? Are they all secretly living in the same area, or do they have some magic teleportation to get closer to each other? How would folk who live in Canada meet up for any reason with folk in Australia?
I am interested. And how would people get superpowers, are they just born with them? In which case, wouldn't it be hard to hide your powers from the government when you're still young?