The Heart of Quagmirran

The Heart of Quagmirran is a quest item only lootable by players on the quest WANTED: The Heart of Quagmirran. The quest is a random daily heroic quest from Wind Trader Zhareem in Lower City.

Source
This item drops from Quagmirran in Slave Pens on heroic mode for those on the quest WANTED: The Heart of Quagmirran.