Ace of Blessings

This item drops from all The Burning Crusade dungeon end-bosses on Heroic difficulty.

Source
This item drops from:
 * Omor the Unscarred in Hellfire Ramparts
 * The Black Stalker in the Underbog
 * Warchief Kargath Bladefist in the Shattered Halls
 * Warlord Kalithresh in the Steamvault
 * Harbinger Skyriss in the Arcatraz
 * Keli'dan the Breaker in the Blood Furnace
 * Warp Splinter in the Botanica
 * Quagmirran in the Slave Pens
 * Murmur in Shadow Labyrinth
 * Nexus-Prince Shaffar in Mana-Tombs
 * Aeonus in the Black Morass
 * Epoch Hunter in Old Hillsbrad Foothills
 * Pathaleon the Calculator in the Mechanar
 * Talon King Ikiss in Sethekk Halls
 * Exarch Maladaar in Auchenai Crypts