Lark Puden is a symphonic/gothic/power metal band from Rosario, Santa Fe, featuring vocalist Melani Hess alongside Nicolás Farante, Pedro Pablo Farante, and Nahuel Nieri. The band released their debut album "Stories of a Mind Gone Astray" on July 30, 2014, a 10-track, 46-minute record praised for its melodic hooks and heavy orchestration.

Leonin is a progressive rock and power metal project from São Paulo, Brazil, founded in 2015 by guitarist and vocalist Felipe Oliveira. The project debuted with the conceptual EP Céu de Mistérios in June 2017, a four-track work recorded at Lab Mancini that follows the story of a character journeying from childhood dreams into adulthood, featuring a full ensemble including bass, drums, and keyboards. Leonin subsequently released the EP Sonho Vívido and the EP VIVAGORAVAI, building a consistent catalog of melodic, narrative-driven progressive metal.

Lightyears is a heavy/speed/power metal band from Anápolis, Goiás, Brazil, operating as an unsigned independent act. The band made a compilation appearance with the track "The Black Ritual of War" on the Underground Produções release "Underground Attack Vol. 01", documenting their presence in the Brazilian underground metal circuit. Their lyrical themes center on war, metal, and conflict.

Lord Divine is a progressive power metal band from Rosario, Argentina, formed in 2004, whose debut Where the Evil Lays (2004) was followed by In Disgrace (2007) and Imágenes (2014). Their fourth album Facing Chaos was released on February 5, 2019 through Spain's Fighter Records and features guest vocals from Mark Boals, known for his work with Yngwie Malmsteen and Royal Hunt.

Lost Forever is a progressive/power metal band from Rio de Janeiro, Brazil, known for a vigorous and technically demanding approach that avoids genre clichés. The band released their debut full-length album "The End of Beginning" through Hellion Records in December 2003, establishing their presence in the Brazilian progressive metal scene. They have continued as an independent act, releasing music under the Artax banner.

Luthien is an Argentine power metal band documented on Encyclopaedia Metallum with a discography that includes the albums Sombras del ayer and Sangre y Cenizas (2008, self-released, 11 tracks in Spanish). Sangre y Cenizas features songs such as "Ave Fénix," "Camposanto," and "La Mascarada," demonstrating the band's melodic heavy metal style with Spanish-language lyrics. The band takes its name from the Tolkien character Lúthien Tinúviel.

Magnalucius is one of Chile's longest-running power metal bands, formed in Concepción in 2000 and considered a pioneer of the genre in the country. They released their debut album The Quest... in 2002, opened for Stratovarius in Santiago in 2003, and remain active — most recently serving as the opening act for Sonata Arctica in Concepción in April 2025.

Makabro is a heavy/thrash/power metal band from Villa Regina, Río Negro, formed in 2014 and active in Argentina's Patagonian underground scene. The band self-released a six-track studio EP in 2022, available on Spotify as "Full EP Estudio 2022", documenting their progressive thrash sound.

Mass Mayhem blends metalcore aggression with power metal melodicism and epic tonal ambitions, tracing their roots to the duo project Primacy launched by cousins Lucas Sodré and Marcos Paulo in Parauapebas. The band signed with MS Metal Records and released material under the Mass Mayhem name, building a following in the far northern Pará state scene.