I listen to them and like the music video NOW ARISE shows the satanic star but I really think they might be atheist cause on one of there songs now arise they say what keeps us alive so i hoped this helped
Slayer started as satanic but then became just anti christian. Same with Morbid Angel and possibly Deicide. Anthrax was never satanic. Gorgoroth is definitely Satanic, and who said that Megadeth was satanic, Megadeth is political.