The song begins with percussionist Shawn Crahan describing what the tempo of the song should be. The track then quickly transgresses into one that is much more deep and forceful, opening the composition. The song contains lead vocalistCorey Taylor speaking in the manner of a radio announcer, and the line "Cut, cut, cut me up and fuck, fuck, fuck me up". During concerts, percussionist Chris Fehn would usually sing the chorus with Corey.
Metal Hammer describes the work as having "an air of the self-titled about it with Sid's scratching in the background and almost poem-esque opening verse".ArtistDirect describes the tune as "'Surfacing 2015' with a massive refrain and Faith No More-esque groove that burns and blazes with evil and engaging panache."The Guardian praised "Custer" as well as "Sarcastrophe", noting "some huge choruses lurking within the repurposed death metal riffs and tribal clatter"