Darth Sidious was always on the lookout for people to help with the Clone Wars project.
There were no shortage of other pieces to use besides Tyranus. Lord Tyranus had an important role as a disciple of the Jedi Sith, but he was not interested in actually leading the armies of the CIS. Taking this into account, Sidious consulted the minutes of the Senate and other sources to find a soldier who had a grudge against the Jedi. That was Greebus of Kalish. It seems that the fight between Kalish and Haku was once on the senate's agenda. Grievous had hoped that the Jedi would support him in his fight against Haku. But all that mattered to the political center was the ability to gain resources in the far outer rim. In the end, the Jedi were easily allowed to support the resource-rich Haku.
And Kalish is defeated. When Tyranus hears about this from Sidious, Tyranus forces the banking group Sun Hill to bail out Kalish with a loan. However, Kalish itself is not a useful people to rescue. He simply wanted to acquire Greebus, who had a grudge against the Jedi. They will deliberately sabotage him to death over and over again to see if he is truly worthy. Tyranus deliberately sabotages the shuttle to ensure that Greebus, who has proven himself strong enough to survive, will be on his side. Again, his body, again with only minor injuries, is artificially maimed after the accident. I'm curious as to why Greebus, who was prepared to accept his death as a warrior, has been kept alive to this point.
Sun Hill replies that he wants him to play a role in the eventual Galactic War that will make him worthy of the loan to Kalish. Understanding the reasons for the bailout by the banking group, Greebus realizes that he will serve as a soldier in the CIS and undergoes biotechnical surgery at Geonosis. In the process, Tyranus allows him to use Siphodias' blood, which had been stored in hibernation.
Satisfied with the success of the operation, Tyrannus later contacts Greivas as Count. He then gives him the lightsaber once used by Siphodias and gives him training equivalent to that of a Jedi. Unbeknownst to Gleevas himself, his brain was intentionally altered to give him a higher level of combat ability. He is truly a monster comparable to a Jedi hunter.
Grievous, who feels a zest for killing Jedi, becomes a "living commander" of his droid army.
When Sidious learns of this from Tyranus, he has him keep a constant eye on Greebus to gain expertise in Sith bio-regeneration technology.
Its strength is an affront to the Force.
Translated with www.DeepL.com/Translator (free version)
