Destroyer is Dan Bejar, star No. 3 — after leader Carl Newman and siren Neko Case — of the New Pornographers. With Destroyer’s Rubies, his insider snipes at indie-rock pretense show Wildean wit. Yet his rhymes are equally fun for outsiders: glammy, hammy, and riding guitar-powered chamber-rock roller coasters. ”A life in art/and a life of mimicry/ is the same thing!” he declares. Maybe. But not all mimicry is created equal.