The Elemental Staff is listed for the Occultism in the game files, with no perk tree yet. Not in Early Access yet.
Elemental Staff
Occultism weapon · not in Early Access yet
Not in Early Access yet
No perk tree in the game files yet.
Early Access · build 26495283
Not in Early Access yet. The Elemental Staff is in the game files but not in the game you can play now.
Occultism Elemental Staff FAQ
Is the Elemental Staff in ArcheAge Chronicles?
Not in Early Access yet. It is in the game files for the Occultism.
From the game files: Early Access · build 26495283