Blessed Qiraji Acolyte Staff

Blessed Qiraji Acolyte Staff is obtained by turning in Imperial Qiraji Regalia and 3 Elementium Ingots to Merithra of the Dream within the Temple of Ahn'Qiraj. This staff is one of three rewards to choose from.

Source
Blessed Qiraji Acolyte Staff is a quest reward from the quest which starts with Merithra of the Dream in the Temple of Ahn'Qiraj in Silithus.