The main limiting factor is TIME. Tracing out each sigil takes like half an hour or something, and then they don't last forever. Probably not longer than a day or two. Also, each teleport trap can be used once before burning out.
It will be useful, for sure, but it will not be the mainstay of our defense.
no subject
It will be useful, for sure, but it will not be the mainstay of our defense.