PTR Helper <Legion Dungeon guide>
This NPC can be found in
Highmaul (7), Neltharion's Lair (4), Black Rook Hold (4), Vault of the Wardens (4), Court of Stars (3), Darkheart Thicket (3), Helmouth Cliffs (3), Halls of Valor (2), Stormwind City, Eye of Azshara, Dalaran, Durotar, Orgrimmar, The Emerald Nightmare, The Arcway, Violet Hold, Champions' Hall, Hall of Legends.