The most blasphemous band in all of death metal returns to St. Louis (finally) after a fifteen-year absence, prepared to convert the stage of the Firebird into a sacrificial altar most unholy. The Dark One smiles as his faithful minions pervert the cross and speak in foul incantations, summoning evil forces to swallow mankind. Or something like that. Rest assured, at the very least Glen Benton (you remember, that guy with the upside-down cross branded into his head from all those "Music is destroying America's youth" documentaries in the '90s) will say some unkind things about the Christian God. At most he might throw some bleeding dead-animal parts at you.
Smoke Crack and Worship Satan: OK, fine, that's a slogan from an Impaled Nazarene shirt, not Deicide, but the sentiment still applies.