Juyo Saberstaff Schematic

''Only the Most skilled force users dare attempt to wield a saberstaff. Only the truely agile are able to master Juyo.'' ''"The single blade has limitations, Master. It made sense to me to be able to strike with both ends." - Darth Maul''

It is a  No Trade  schematic looted in the Axkva Min or IG-88 instances.

Star Wars Lore
Dubbed the Way of the Vornskr, or The Ferocity Form, Juyo, a term from High Galactic, was originally considered an incomplete form for millennia. Generally viewed as undeveloped and rarely used by the Jedi and the Sith, Juyo was not seen as one of the main forms for generations of Jedi. Jedi Master Mace Windu developed his own Form VII, which was nicknamed Vaapad after a creature from Sarapin which moved with speed similar to Windu. In 22 BBY, Emperor Palpatine stated that he had only ever heard of six forms; Yoda said there were only 6 forms for generations of Jedi, and Mace indicated that he invented Vaapad. (It should be noted that Darth Maul, Palpatine's apprentice, was a Juyo practitioner.) The nickname, Vaapad, came from students likening it to a predator, the vaapad, which used its tentacles in lightning-fast whipping attacks. It was said to be impossible to tell how many tentacles a vaapad had until it was dead.