Color: Colour TBC. UPC: 8055515236958 Power From Hell is the debut studio album by British metal pioneers Onslaught, originally released in l985. 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.