Master Gadrin
Found in Durotar.
Durotar
Quest Level Side Report to Orgnil 7 Both Minshina's Skull 9 Both Zalazane 10 Both The Spider God 45 Both Summoning Shadra 55 Both Quest Level Side Report to Sen'jin Village 5 Both Minshina's Skull 9 Both Zalazane 10 Both Consult Master Gadrin 45 Both The Spider God 45 Both Zone Spawns Coordinates Durotar 1 55.9, 74.7