Kataklysm have long been known for their perfectly crafted, intensely catchy and anthemic songs and their pummeling live shows. But on Heaven's Venom, the vitriol and aggression contained takes things to another dimension. Their catchy riffs remain intact and their talent is undeniable, but this is the kind of album that turns casual fans into diehard, bloodthirsty maniacs. Catch them on OZZfest '10 and with DevilDriver this summer.