Comfey is the only one that can pass down Play Rough , and should learn Synthesis as well . <| sep |> Sargeras did split a planet in two and have killed all the other titans , so I don ' t think the Old Gods matter much . I can ' t for the life of me remember what they are called right now , but Sargeras gazed at them and realized that the titans plans about beating the old gods to save the titan hidden inside Azeroth were doomed to fail and the only possible way to save the universe was to destroy it . The Old Gods are bound to to Azeroth themselves , and don ' t really matter in the grand scheme of things . Oh and the reason Sargeras destroyed the planet was because there was a titan inside it which was being corrupted just like the old god corrupts the Azeroth titan .