Skeleton Mages
Skeleton Mages are a confirmed creature type in Gothic 1 Remake, called out explicitly alongside Bloodflies, Goblins, Molerats, Swampshark, Scavengers, and Minecrawlers in the remake's public pre-release concept art and trailer reveals. They are a step up from basic Skeletons.
Role
Skeleton Mages are ranged threats. Where a basic Skeleton closes distance and strikes with a weapon, a Skeleton Mage projects magic at the Nameless Hero from a distance, which forces the player to deal with an ongoing damage source while fighting the rest of the pack.
Where They Appear
As with Skeletons, Skeleton Mages are concentrated in ruins, old shrines, and the pre-Barrier sites scattered across the Valley of Mines. Encountering them is usually a signal that the Hero has wandered into late-game content.