Lasso, Luchist

ラキスト・ラッソ

As the founder and former leader of the X-laws, Luchist is by far one of the more powerful shamans serving under Hao. Luchist serves as Marco's primary rival. It appears that the two were close friends in their previous lives, having both worked as car dealers. However, Hao's intervention permanently altered the comrades' lives. This relationship is not mentioned in the anime. In the manga, after the deaths of X-III, he follows Yoh to the X-laws' base, intending to regain entry into the Shaman Fight (which he had relinquished as a condition for reviving Ren). While Yoh fights Marco and X-II, Luchist intervenes on Hao's behalf, easily defeating X-II before engaging Marco in battle. As he overpowers Marco, Lyserg and Yoh (with Jeanne's help) intervene and manage to destroy his Oversoul, causing him to faint. His final appearance occurs on the Mu continent, where he blocks Yoh and the others from entering the plants. Although the battle is not shown, he and Marco are both killed during the fight, a fact confirmed by Lyserg's mention of reviving him in the next chapter.
Luchist's Spirit
Lucifer, the "fallen angel." Like all Archangels, it can shatter souls and apparently moves at undetectable speeds. It also seems to require a significant amount of Furyoku, as he fainted when Lyserg destroyed the Oversoul once.