Heroic: Trial of the Champion (Horde)

Heroic: Trial of the Champion is a dungeon & raids achievement earned for defeating the listed bosses of the Trial of the Champion on Heroic difficulty.

Details
The first round of the Trial of the Champion consists of facing three of these five Grand Champions of the Alliance:
 * Ambrose Boltspark
 * Colosos
 * Jaelyne Evensong
 * Lana Stouthammer
 * Marshal Jacob Alerius

The second round consists of facing one of these two bosses:
 * Argent Confessor Paletress
 * Eadric the Pure

The third round consists of facing:
 * The Black Knight