Toad
This NPC can be found in Swamp of Sorrows (9), Arathi Highlands (2), Tirisfal Glades (2), Terokkar Forest (7), Eversong Woods (14), Shattrath City (1), Nagrand (72), Zangarmarsh (13), Silverpine Forest (4), Undercity (1), Wetlands (30), The Steamvault (2), The Barrens (16), Un'Goro Crater (30), Tanaris (7), Dustwallow Marsh (57), Thousand Needles (2), Ghostlands (5), Deadwind Pass (2), Zul'Gurub (6), Alterac Mountains (1), Teldrassil (31), Darnassus (32) and Black Temple (12).