On the band's first album, Phantasmagoria, released in 1989, they most notably used their Chakal singer Vladimir Korg on vocals and boasted a twin guitar line-up displaying a progressive mix of aggressive thrash and gothic atmosphere.

Following this release, Dias left the band and was replaced by Cassiano Gobbet on both bass guitar and vocals for the final album, Gottverlassenin 1995, before splitting up in 1997.

His collaborations in the band's first three albums (Soulfly, Primitive and 3) were essential and indeed established his professional level earning him certified RIAA gold records in the US as well in other countries, selling more than two million copies worldwide.

With System of a Down bass guitarist's Shavo Odadjian as their executive producer, they recorded a full-length album on their own, with an open agenda to negotiate any future deals.

In 2005, Dias appeared as one of the bass guitar players on the Roadrunner United compilation CD, The All-Star Sessions,[3] with Fear Factory's guitarist Dino Cazares, Roy Mayorga (Stone Sour), Andreas Kisser (Sepultura) and many others.