Sepultura hasn't been the same since original frontman Max Cavalera's departure, but that isn't necessarily a bad thing. With its second album since the split, Brazil's heaviest export continues developing its dynamic blend of the savage and the sophisticated. Nation runs a zesty gamut from hardcore outbursts that gnash and thrash with blunt intent ("Revolt," "Human Cause") to subtler numbers that temper the band's metalismo with exotic sounds.