I suppose I don't know the details your Calamity, but I cannot imagine it so different from Karsus's Folly.

[ shaking in my boots. but listen, its pre-requisite to have a big calamitous civilization crash in your dnd world.

anyway basically grinning this is the best time he's had since arriving here. ]

Then I am but your eager pupil, ready for instruction. [ he coughs a little though. ] I do feel the need to reiterate my experience, however!