Power From Hell is the debut studio album by British metal pioneers Onslaught, originally released in 1985. Mining the same dark and aggressive territory as early Slayer, it helped forge a sound that would later evolve into something even more extreme. With its raw intensity and unrelenting energy, the album became a crucial piece of heavy music history, influencing and shaping the early works of legendary bands like Exodus, Slayer, and Metallica. Nearly four decades later, Power From Hell remains a defining statement of its era.