Revelations from Patch 6.3: Gods Revel, Lands Tremble

[Cleretic]

tbf, Byregot's used to be in W Shroud which... we can't just visit anymore let me iiiiiin, Yoshidaaaaaa near one of the old camps, so it was displaced during the 7UC... somehow! I don't think it was moved by a spoken race since that looks mighty heavy. It could have been elsewhere long ago too, which lends itself to the dialogue post-raid that they've been around for a real long time, but the earth being rent asunder so many times, they either appear elsewhere or through the Twelve's own ability they manifest elsewhere. Some may have some obvious connections (Gridania is still influenced by Amdapor with Nophica, Ul'dah the twin gods, Limsa and Llymlaen) but others, like you said, may not... at least ones we can't/haven't sussed out yet Whether we get that info or not, I enjoy theorizing about it haha.

The cutscene around Thaliak's mark essentially says that while their shapes and locations may change, their role doesn't. It's completely possible that just meant that it remains the same rock no matter how man shapes or shifts it, but I kinda took it to mean that the rocks themselves move and shapeshift of their own volition sometimes. It'd explain Menphina's symbol changing to include Dalamud. (EDIT: Also, you can't tell me NOBODY'S tried to take Halone's Mark and turn it into an altar in an Ishgardian cathedral or something; this would explain why they all seem so natural.)

I believe there's more than one of those marks that moved from now-nonexistent zones. If we assume that the rocks really do move by themselves, it would actually make some amount of sense that they moved themselves into more accessible areas, since part of their job is to be something of a connecting point between the Twelve and mankind. It probably wouldn't do for Byregot's mark to be off in a part of the Shroud nobody can actually get to.