I've been away, so maybe this was announced/known...
As a level 7 troll she will attempt to bind me, but "I do not have an affinity for this place" message comes up. I figure this is because I am too low for LDoN. I remember her being present on progression servers (way before LDoN) and being rather handy... but I might not have been under level 10 when I used her last.
I suppose commons tunnels is my closest safe souldbinder.