[@1Charak2]: Honestly I feel like we somehow have completely different viewpoints on how mystery works in the Nasuverse. Perhaps because it's kind of vaguely defined and difficult to articulate, but based on what I know of the setting I don't see the issue here anyway. I'm putting my foot down, it's not erasing magic by existing. I would also like to state that it's not [i]just[/i] a lot of leylines, anyway, since that alone doesn't allow for Servant summoning.

As for command seals, the ability to resist them goes up the more the order runs counter to the ideals of the Servant/magic resistance. Trying to order Arturia to destroy a city filled with innocent people would likely be something she could resist long enough to stick a sword through her Master, given it took three to make her destroy the Grail in /zero.

Fusang's law enforcement is composed of both Servants and Masters. Masters are still relevant as the anchor for Servants, allowing them to exist in the world.

It is not possible to summon Servants outside of Fusang without something like the Holy Grail, which is pretty difficult to obtain given the Einzberns sort of need to be involved there(or you need the Chaldea system which is a little murkier). The point being unless you have the cooperation of magi, it's not going to work.

However, Servant vacations is most likely a thing, because of course they'd want to visit their homelands for a while when able.

... And then [@Raineh Daze] comes along and easily explains what I was too worried about trying to articulate. ^^;