. "The Astral Walker is a title awarded when you complete the achievement Heroic: Observed by defeating Algalon the Observer on heroic difficulty. The title appears after your character's name: \"\" the Astral Walker"@en . . "The Astral Walker"@en . . . . "The Astral Walker is a title awarded when you complete the achievement Heroic: Observed by defeating Algalon the Observer on heroic difficulty. The title appears after your character's name: \"\" the Astral Walker"@en .