Take the Head of Onyxia to Arnak Fireblade in the Cleft of Shadow.
You have accomplished the truly impossible. The brood mother of the Black Dragonflight lies dead at your feet. Seize her head and deliver it to Arnak Fireblade.
What is the meaning of this?!
You've brought me the head of someone who is... No, best not to think about it too hard. You'll be wanting recompense for your heroic deeds, no doubt.
You will be able to choose one of these rewards:
You will also receive:
(or 4 50
if completed at level 100)
Upon completion of this quest you will gain: