The Mines of Moria expansion descends into Khazad-dum — one of the most vast and perilous underground environments in Middle-earth. Two new classes join the roster: the Rune-keeper and the Warden, each suited to the unique challenges of the deep. Legendary items, which evolve and grow alongside their bearers, make their debut here. Below the stone, the Nameless Deep waits — and the knowledge lost to the ages may still be recoverable for those willing to go far enough to find it.