Zulian Headdress

The Zulian Headdress is a very nice item for casters as it has bonuses in stamina, intellect, spirit, and +spell power.

Source
This item drops off any of the aspects of Hakkar (High Priestess Jeklik, High Priest Venoxis, High Priestess Mar'li, High Priest Thekal, High Priestess Arlokk) in Zul'Gurub.