The parts of this set are Item Level 258 and are purchased with a regalia item. This regalia item is gained solely from the Argent Crusade Tribute Chest gained after defeating Anub'arak in a 25 man Trial of the Crusader set to Heroic mode.
The Item level 232 versions ("... of Conquest") are purchased solely with Emblems of Triumph.
The Item Level 245 versions ("... of Triumph") require half again as many emblems, and a as well. The trophy is a drop from each boss in the 25-man Trial of the Crusader. It is also found in the Argent Crusade Tribute Chest, from either 10- or 25- man heroic mode raids.
|Slot|| _ of Conquest|
| _ of Triumph|
All three versions count towards satisfying the set bonus requirements.