This quest is not available in game.
Bring the Tooth of Morphaz to Ogtinc in Azshara. Ogtinc resides atop the cliffs northeast the Ruins of Eldarath.
Now I set you on a dangerous hunt to slay the green drake, Morphaz, and bring his tooth to me. Morphaz dwells deep in Temple of Atal'Hakkar, the entrance to which lies in Swamp of Sorrows.
If you wish to defeat him, you must not go alone. This drake is an enemy of many -- seek others who wish to destroy him.
The drake's tooth represents the power a hunter will find in the company of others. Bring it to me and you will have learned much.