Possibly but it depends on many factors, and it depends if the members of the band are using the name for the more tame witchcraft, or if they're using it in Satanic rituals. Most likely not full out Satanism, but the members may be in possession of occult knowledge of some form because of the use of the name Marduk. Marduk is a god of sorts, and a mythological being that was talked about by the ancient Sumerians. His name does appear in the Necronomicon though, which is studied by both Wiccan/Neo-pagans and Satanists.
NO the best true satanic bands are DARK FUNERAL MARDUK BATHORY GORGOROTH BEHERIT BEHEXEN BURZUM BARATHRUM DEICIDE ANIMA DAMNAT etc well slayer is the best known satanic band
Marduk - band - was created in 1990.
No, Avenged Sevenfold is not a satanic band. Although some of their songs on their new album Nightmare appear satanic, they are not a satanic band.
NOOOOOO they aren't satanic
Slipknot has stated that they are not satanic.
No its not a Satanic band, They just express what they feel about life in music
No, Three Days Grace is not a satanic band.
No, Motley Crue is not a Satanic band. All of the band members have publicly confirmed it.
No, The Devil Wears Prada is not Satanic. They are a Christian band.
No, its a metal band.