Hello, I will be quick with the suggestion, many of my sets are incomplete just because I am missing some item from Onyxia's head and that sometimes annoys me because if there are items from Nefarian's head in the respective BWL vendor, why aren't there of Onyxia? this is my suggestion:
Add an Onyxia' head items vendor that sell the neck, ring and trinket each one with a high price like 8k-15k OR Add em in the website page shop for 100 VP
Grab your sword and fight the Horde!.
Uncle Lothar wants YOU!.