something to add to surfaces topic: no surface should be permanent. The bibberfang fumes in the Hag's hideout just keep coming back after detonating them and there seems no way to block them off, and that's just plain silly, especially since there's no way to spam 'create water' without expending spell slots.
I know this is how it worked lots of times in DOS2, but please for the love of the gods, let's not do this here.