Light and darkness are vital to both the logistics and the mood of a dungeon crawl. A little something your bad guys can employ to quickly bring the terror of the dark into a "Tucker's Kobolds" scenario.
https://mindweaverpg.wordpress.com/2021/09/01/biweekly-item-shadow-ball-add/
The party ended up getting a little sidetracked by a whole nest of ogres.
#playreport
https://mindweaverpg.wordpress.com/2023/06/30/play-report-kotb-barrier-march-session-52-surprise-ogres/
Searching for more information about the lay of the land around the bugbear crag, the party ends up ambushing a patrol, but when the ambush doesn't get surprise, the battle is far more even than intended.