I think it would be nice to have more areas with rain, for example some areas in Numaren.
Or make a Module which randomly spawns rain or even thunderstorms with lightning strikes at any location, except dungeons.
Seriously, what kind of horror doesn't have a proper lightning strike or a storm in it?
Or even make a small chance for it to strike any player who are not inside any dungeon and who have not-in-combat status with a big amount of lightning property damage. So afk people sholuld run and play the game.
You've been thunderstruck!!!!