What makes What One Becomes by Sumac notable?

The album received critical acclaim for its ambitious structure and sonic depth, often highlighted in publications like Pitchfork and Decibel Magazine. Its lengthy compositions and experimental nature positioned Sumac as a significant force within the contemporary metal landscape, influencing upcoming artists with its bold approach to heaviness. What One Becomes is Sumac's second full-length album, released in 2016 after their debut, The Deal. At this point, the band was solidifying their reputation in the underground metal scene, following notable performances and collaborations that showcased their unique blend of sludge and post-metal influences.