Question: Shaman was assembled from musicians who left what metal band?

full_context: Document 1: Angela (band): angela (stylized with a lower case initial) is a Japanese pop band, notable for having their music portrayed as theme songs for several anime television shows. The main members are Atsuko and Katsu. Their signature upbeat tunes and rich arrangements combine elements of electronica, dance, rock, swing jazz and ska. In 2008, they started an alter ego band called Domestic Love Band (ドメスティック・ラヴバンド). They are most well known for providing all opening and ending themes to the "Fafner in the Azure" anime series.
Document 2: Shadow Warriors (band): Shadow Warriors was a British comedy power metal band, formed by guitarist Sam Totman in late 2000 as a "secret" side project of DragonForce. The band also featured ZP Theart as lead vocalist and two other Fictional members, drummer Jyuohki and bassist Kazuma, the two "members" are actually drum machine and bass parts played by Sam Totman. The band performed Power Metal music with Japanese Warrior-based lyrics, such as Ninjas and Samurai.
Document 3: Raimundos: Raimundos is a Brazilian punk/hardcore band. They have major influences of 1980s punk bands, especially Ramones. The band was formed in Brasilia, in 1987 by Digão and Rodolfo Abrantes. The vocalist Derrick Green of Sepultura participated on their CD "Kavookavala" and João Gordo of Ratos de Porão participated on their first album "Raimundos" (1994) providing backing vocals on the song "MM's". The name of the band refers to one of its biggest influences, Ramones, being also one of the most common male first names in Brazilian northeast region.
Document 4: Shamániac: Shamániac is the second and final studio album by the Finnish folk metal band "Shaman", before they changed their name to "Korpiklaani". The album has been produced by the Shaman frontman Jonne Järvelä and Samu Ruotsalainen, the drummer of the Finnish folk metal band Finntroll.
Document 5: Altera Enigma: Altera Enigma is an experimental death and progressive metal band formed by Melbourne, Australia-based Jason De Ron, the former guitarist and front man of Paramaecium, and Jakarta, Indonesia native Jefray Arwadi, former guitarist, vocalist, and front man of Kekal. Both of these musicians have a career that has seen them record and release nearly 20 albums between them. According to Jason De Ron, the name Altera Enigma was chosen because it represents something mysterious and unique. Kenny Cheong, a jazz fusion bassist, joined the project in 2005, and Altera Enigma's first album was released in 2006. Jayson Sherlock, a former band-mate of De Ron in Paramecium and also a former member of the band Mortification and the sole member of Horde, joined on drums in 2007. In 2009, Jeff Arwadi, having relocated from Indonesia to Canada in 2007, decided to step down from the project.
Document 6: Reaching Horizons: Reaching Horizons is a demo-tape by the Brazilian power metal band Angra released in 1993 through Limb Music. The original cassette contained six songs, with some re-recorded for their debut album Angels Cry. In 1997, the record-company re-released the album, adding three bonus tracks. The songs were recorded in July 1992 at the Guidon Studios, Sao Paulo, by sound engineer Ezequias Aureliano, except for the last two which were recorded in January 1993 at the Anonimatos Studios in Sao Paulo. It is the only release by the band that features Antunes on drums before he was replaced during the sessions for their debut album.
Document 7: Sixty Watt Shaman: Sixty Watt Shaman is an American rock band known for incorporating hard rock with blues, southern rock, doom rock, punk rock and metal influences, originally based out of Eldersburg, Baltimore County, Montgomery County, and Montgomery Village, Maryland. The band play a diverse repertoire of hard hitting groove rock and ethereal psychedelic jams, with classic tube tones, echoing heavy blues, southern groove, doom, and even the ghostly spirit of historic Americana and Appalachian bluegrass. They formed in 1996 and recorded and released their first studio album in 1998. The band last recorded in 2002. The last official band tour was in late 2002 through January 2003; but, have made several reunion appearances since, including Desertfest Berlin and Desertfest London in 2014. The band continues efforts focused on festival events in the US and Europe, and in 2017 are writing and recording new music for release. They are widely regarded as innovators in their musical genre with the "Sixty Watt" sound, and have been both imitated and replicated by peers and bands who followed in their footsteps.
Document 8: Sepultura discography: The following is the discography of Sepultura, a Brazilian heavy metal band. Sepultura was formed in Belo Horizonte, Minas Gerais, in 1984 by brothers Max and Igor Cavalera. After several lineup changes, Paulo Jr. and Jairo Guedz became permanent members for the band's first studio album "Morbid Visions", released in 1986 through Cogumelo Records. Guitarist Jairo Guedz left Sepultura following the band's first tour and was replaced by Andreas Kisser. With the new lineup, Sepultura recorded "Schizophrenia" in 1987. "Beneath the Remains", the first album from the band's contract with Roadrunner Records, was released in 1989, followed by "Arise" in 1991 and "Chaos A.D." in 1993. Sepultura's best-selling album "Roots", was released in 1996 and debuted at number 27 on the "Billboard" 200.
Document 9: Angel (rock band): Angel is an American heavy metal band from New York City, formed in 1989. The band was founded and guided by Criss Angel during the explosion of hair metal in the late '80s. The name of the present band was taken as "Angel" when the glam-rock band formed by Punky Meadows and Mickie Jones gradually dissolved after 1981 (with a brief resurgence in 1987), as its founding members drifted off to other projects. The present band disbanded when founder Criss Angel decided to go into the direction of industrial rock, and formed Angeldust (after which he pursued a career in magic and illusion).
Document 10: Shaman (band): Shaman, previously known as Shaaman, was a Brazilian progressive/power metal band assembled in 2000 by three musicians who left the band Angra - Andre Matos, Luis Mariutti and Ricardo Confessori. The band was completed with guitar player Hugo Mariutti (Luis' younger brother - both of them also play in another band called Henceforth).
Document 11: Angels and Agony: Angels and Agony are a Dutch futurepop band consisting of vocalist Reinier Kahle, guitarist Erik Wierenga, DJ Marco van Belle on synthesizer and backing vocals and Fried Bruggink as sound engineer and drummer. The band formed in 1995 and produced two EPs before its first full album, "Eternity" (2001). "Eternity" was produced by VNV Nation's Ronan Harris. Other high-profile collaborations include Axel Ermes of Girls Under Glass, Diorama, and SITD The band's current record label (since "Eternity", 2001) is Out of Line, a German label of industrial- and synthpop-oriented electronic bands. Metropolis Records is the band's US distributor since 2004.
Document 12: Shannon Hamm: Shannon Hamm is a death metal guitarist who played in Death from 1996 until their break-up in 2001. He then joined Chuck Schuldiner's second band Control Denied, which ended with the death of Schuldiner in 2001. Before Death, he was a locally well known guitarist in the Texas underground metal scene. He was particularly good friends with "Dimebag" Darrell Abbott of Pantera and Damageplan. According to Abbott, Hamm "out shredded" Darrell in Pantera's glam metal days while Hamm was in a band named Metalstorm.
Document 13: The Samans: The Samans (), is a Chinese Industrial metal band that was formed at 2007 in Changchun, Jilin. Currently it has five members, Lifu Wang (Lead Vocal)、Yaxin Gao (Programme/Samples)、Zhichao Ren (Guitar)、Xiaoyu Cui (Guitar)、Ji Qi(Bass). The name of their band is from their five members' (those who from Northeast of China and Inner Mongolia Region) Religion. The member chose to use "The Samans" as their band's English name instead of "Shaman" because they insist it doesn't spell like that in their national language. Most of their songs are in English.
Document 14: The Angels discography: The Australian hard rock band, the Angels, have released thirteen studio albums, three live albums, six extended plays and forty-seven singles. The Angels were formed in Adelaide in 1974 by the Brewster brothers, John and Rick, together with Bernard "Doc" Neeson. The line-up of the band has since gone through numerous changes with Rick as the mainstay member. They are known as Angel City internationally (to avoid confusion with now defunct 70's glamsters Angel) and later albums were released as The Angels from Angel City. The Band always hated the international names. Not all albums are available internationally and the ones that have been released generally have a different track listing and often an altered album cover from the original Australian releases.
Document 15: Angra (band): Angra is a Brazilian metal band formed in 1991 that has gone through a number of line-up changes since its foundation. They have released eight regular studio albums, five EPs and three live CD/DVDs to date. Led by Rafael Bittencourt, the band has gained a degree of popularity in Japan and Europe.
ground_truth: Angra