After the Guardian and Mara Sov gather materials and information, Mara Sov provides the Guardian with a Noble Seal which will deactivate the scepter's security screen.
Dozmary Vault, The Dreaming City
The Guardian claims Ager's Scepter. The scepter thrums with power.
The Guardian uses Ager's Scepter to carve out a path past the collapsed rubble of the vault. Kelgorath, Risen from Bones arrives through a Hive portal to claim the scepter. The Guardian defeats Kelgorath and various Pillagers of Xivu Arath.
Queen Mara Sov: Xivu Arath's subordinate came to my doorstep as a thief. Their death is the price of encroachment. Ager's Scepter carves pathways toward one's goals. The compass you carry is based off the same principles as this weapon. In Uldren's hands, it could have connected every edge of my kingdom. Through Xivu Arath, it would grant an omnipresence within the Reef even I could not subdue. Deliver it safely to me. While it may never be Uldren's... it may yet serve to guide what he has become.