World of Warcraft's latest patch, Rage of the Firelands, is now live. This patch marks the return of the infamous Ragnaros, and will pit players against the full force of the Firelands. New stuff includes a questing hub, a brand new raid, and the addition of a caster Legendary item with an associated quest chain and several upgrades. For a full rundown of what's in the patch you can check out our patch 4.2 preview. You can also check out the trailer below for a look at the Firelord himself...