Blue Hummingbird On The Left's long-awaited debut album, Atl Tlachinolli, is a union of fire and water, bringing forth the sacred war. The album features indigenous instruments flowing like water alongside the fiery force of pagan black metal. The release is a collaboration between IRON BONEHEAD PRODUCTIONS, Nuclear War Now! Productions, and Crepúsculo Negro. The album was released on December 10, 2018. The review from Metal-Archives states that the album is a big advance into the alternative metal mainstream and that BHOTL plays fairly straightforward raw BM compared to the other bands that play fusion extreme BM psychedelia.