For sure, he has all the prerogative to fall into Vintage cat respect the Dreadblades shirt the dark side, Vader himself told him and Eeth Koth was fully aware of it. The dark side of the Force, also known as Bogan, was an aspect of the Force. Individuals who used the dark side drew their power from more intense, raw and darker emotions such as fear, anger, hatred, passion, and aggression. At this point, in his fight against Vader, he was already in the Dark side. A Jedi, or a Force user who lets himself be influenced by his emotions or feeds in it, uses the Dark Side. Eeth Koth, a Force-sensitive Iridonian Zabrak male, was a Jedi Master who served on the Jedi High Council during the last years of the Galactic Republic. Like his fellow Jedi, he fought against the Confederacy of Independent Systems as a Jedi General in the Grand Army of the Republic during the Clone Wars.
After surviving the first battle on Geonosis that started the Vintage cat respect the Dreadblades shirt intergalactic conflict, Koth was captured by General Grievous and used as bait to lure other Jedi into a trap. However, he had narrowly escaped death upon being rescued by with the combined forces of Adi Gallia, Obi-Wan Kenobi and Anakin Skywalker at Saleucami. Koth was eventually removed from the Jedi High Council and his seat was given to Agen Kolar. By the time of the Galactic Empire—the regime that came to dominate the galaxy in the aftermath of the Clone Wars—Koth was a priest in the Church of the Ganthic Enlightenment and had a wife, Mira, who gave birth to the former Jedi Master’s infant daughter. Darth Vader, the Sith Lord who oversaw the Jedi Purge that began with Order 66, defeated and killed Koth in a lightsaber duel. Vader then abducted Koth’s child, having chosen her as a potential candidate for Project Harvester.