This item is acquired in-game. See its sources below.
In the Appearances collection, Preyhunter's Staff is listed as Quest. Appearance ID: 130710. 1 other item wears the same appearance:
Read from the World of Warcraft client build files.
In their in-game specialization descriptions, these specs name staves among their preferred weapons:
Preyhunter's Staff is part of the transmog set Preyhunter's Lost Armaments. The other 10 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Preyhunter's Staff is not traded on the Auction House, so it has no Auction House price. It is acquired in-game from the sources listed above. This page collects its first-party game data (identity, effects and where it comes from) from the official World of Warcraft client build.
Tracked changes to Preyhunter's Staff between game data builds, newest first.
TheWoWDB
