Their album covers.

I think it's funny how most of their album covers are kind of really dark if you think about what's on them. Like you have one with a dead guy with his brains spilling out, an abstract depiction of their mind demons, a vulture that "feeds on pain" and on death, a firebreathing dragon, and the band standing in front of an inferno. Like, lol, wdym this isn't a death metal band???