Attuned Shard

The Attuned Shard is provided as an objective for various quests in Torghast, including:
 * The Search for Baine
 * Torment Chamber: Jaina
 * Torment Chamber: Thrall
 * A Paladin's Soul

Use it at the Wayfinder in the Torghast Antechamber to head into the quest wing required by the quest.