Like Dante's vision of hell, metal grows darker and more depraved the deeper you venture. Among the inner circles you'll find unholy entities like Lamb of God's violently anti-Jesus groove-metal drubbings (“Footprints”) and Pig Destroyer's furious blasts of grindcore (“Trojan Whore”). There are also tons of undiluted spite, like Of Mice & Men's “You Make Me Sick,” an ambush of precision-guided metalcore breakdowns.