Requirement
Defeat the final bosses of the level 46-60 dungeon group.
Detail
Dungeons: Razorfen Downs; Zul'Farrak; Alcaz Prison; Blackrock Depths; Lower Blackrock Spire; Scholomance; Stratholme: Dead; Dire Maul: North; The Shaper's Terrace; Uldaman; Maraudon; The Temple of Atal'Hakkar; Blackmaw Hold; Upper Blackrock Spire; Stratholme: Live; Dire Maul: East; Dire Maul: West.
Dungeons
Razorfen Downs; Zul'Farrak; Alcaz Prison; Blackrock Depths; Lower Blackrock Spire; Scholomance; Stratholme: Dead; Dire Maul: North; The Shaper's Terrace; Uldaman; Maraudon; The Temple of Atal'Hakkar; Blackmaw Hold; Upper Blackrock Spire; Stratholme: Live; Dire Maul: East; Dire Maul: West
Notes
Blizzard's article does not list the dungeons; the list is Wowhead's reading of the client challenge text.
Confidence note
Challenge and points: Blizzard's article. The client's challenge name, dungeon list: Reported (one outlet).