former members berserk -- guitar ( 1993 -- 1995 ) torvus -- drums ( 1995 -- 1996 ) desecrator -- drums ( 1997 -- 1998 ) diabolus mort -- guitar ( 1997 -- 1998 ) blod -- drums ( 1998 -- 1999 ) arak draconiiz -- guitar ( 1999 -- 2000 ) pål -- guitar ( 2000 -- 2001 ) jontho -- drums ( 2001 -- 2003 ) nag ( jan-erik romøren ) -- bass , vocals ( 1993 -- 2006 , 2010 - ) draugluin ( halvor storrøsten ) -- guitar ( 1994 -- 2006 , 2010 - ) anti-christian ( christian svendsen ) -- drums ( 1999 -- 2001 , 2003 -- 2006 , 2010 - ) related bands ragnarok - jontho 's black metal band .