Complex sentence: In Late 90's under nickname Howlin' De Ville he was a vocalist and guitarist of the Danzig influenced band named Wolverine, which was showcasing Nergal's capability to clean singing.
Split into simpler sentences: In Late 90's under nickname Howlin' De Ville he was a vocalist and guitarist of the Danzig influenced band named Wolverine. Which was showcasing Nergal's capability to clean singing.