Toad
This NPC can be found in Swamp of Sorrows (9), Arathi Highlands (2), Tirisfal Glades (2), Silverpine Forest (4), Undercity (1), Wetlands (30), The Barrens (16), Un'Goro Crater (30), Tanaris (7), Dustwallow Marsh (57), Thousand Needles (2), Deadwind Pass (2), Zul'Gurub (6), Alterac Mountains (1), Teldrassil (31) and Darnassus (32).