I think we need a reason why we are going back to Necromancy. What is bringing us back to that point. Maybe we found something a relic from this person…
Sorzus Syn was a female Jedi who was exiled from the Jedi Order, following the Hundred-Year Darkness. Sorzus Syn and her fellow Dark Jedi enslaved the native Sith of Korriban, christened themselves the first of the Sith Lords, and instituted a new order that centered around worship and practice of the dark side of the Force.
During her reign, Syn wrote a journal that was later included in the Book of Sith, which was a chronicle of her encounters with Sith Purebloods, explorations in alchemy, and the foundations of the Sith Order. She was apparently the original author of the Sith Code.Revenge against the Jedi
"Life itself was in our services."
She had a diary, In that diary she wrote many spells and things about Necromancy. as show here here:
When Sorzus Syn was a member of the Jedi Order, she served the light side of the Force; however, when she fell to the dark side, she became cold, uncaring, selfish and power hungry, caring nothing about other beings. For example, she cared not for the slaves that died during her excavations of Sith tombs, even feeding one of them to a tuk’ata to save her own life. As an expert for creating living biological weapons and plagues, Sorzus Syn talked about various forms and benefits. In her view, using alchemy to alter dead creatures was easier because dead cells, unlike living ones, could not resist.
Behind the scenes
At the end of her life, Sorzus Syn created her own holocron, the introduction of the Rule of Two in the possession of the Sith Lord Darth Bane. He managed to smuggle a copy of the artifact from the Jedi Temple, which served them as a cloaking device and the lifetimes when Jedi Master Mace Windu was in the archives.
A part of her diary, started from the third month of their exile, remained intact after her death and was included in the archive of the Jedi Temple where Mace Windu and Grand Master Yoda examined the pages written in which she pointed primarily to the dangers of the dark side. In the wake of the Great Jedi Purge, the book came into the possession of the new Emperor Darth Sidious. According to his statement, these statements were the oldest text that lasted for thousands of years. He noted that all the authors collected were Sorzus Syn, Darth Malgus, Darth Bane, Darth Plagueis, and Mother Talzin. They were believed to be strong in their own dogma and were removed from the path that the Sith had. When the book fell into the hands of Grand Master Luke Skywalker, he tried to associate the contributions to their time. He believed that the scriptures were written in the years after 7000 BBY. The entries of the Jedi that he dated to a time before the Battle of Naboo in 32 BBY, and Sidious’ remarks, after he seized power in 19 BBY
So in turn we would could steal the book from the Jedi or find the holocron. Maybe the Jedi are moving the dark artifacts and we get word they are passing through our system. So we work with the pirate factions to distract the Jedi as we then assault them.