Plaguelands

Plaguelands is a term used to refer to areas or regions where spellplague exists. Creatures that venture close to plaguelands can gain spellscars. The Order of Blue Flame often seek out plaguelands in what are referred to as Scar Pilgrimages.

There is a large area of plaguelands in Interior Faerûn south of the Vilhon Wilds called the Plaguewrought Land

Plaguelands

D&D 5th: Demon Tower of Madness RikCameron