
Skrag (Me.:"Strangler") was a Troll of Angband, though a highly uncommon one.He lived in a flooded lair in the drowned and watery deeps, those parts of Angband which were filled with dark and foul waters.He was an avid swimmer and diver and why some speculated he may have had Water-demon ancestry. Skrag enscaped the fall of Angband and survived into the Second Age when he was entombed in the Ghost-Caves of Dunfearn alongside his comrades Bargûr and Mogtûl, the Caves magic spells turned all three into Undead.
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Original form in the Angband roguelike: Scrag = Skrag
Scrag was borrowed into the Angband games from D&D/ Pathfinder where a "Scrag" is a marine or freshwater aquatic troll subtype.