I see nothing wrong with this... Other than the polite advisement that you'll want to bring the core with you so other creatures do not try to claim it as soon as you leave, and that as soon as you start moving it, we're going to have a lot of monsters coming this way. They seem to react to it being moved.

[Megaera had managed to cheat that last time by just teleporting the core back, but... Somehow, she didn't think that'd work here.]