Onyxia was currently a fugitive.
She was Neltharion, the Wings of Death, and the younger sister of her brother Nefarion. The crimes that she, the Princess of the Black Dragon committed, were hidden from the eyes' of Stormwind City and corrupted the city's politics. After she was exposed by Marshal Reginald Winsor, she shamelessly finished him off and was listed as wanted throughout the entire world.
Players looked everywhere to try and find her out where she was hiding, until they finally discovered her lair.
Onyxia was in the land of Theramore's Fall – a putrid bog. If a player didn't have to venture here, they would prefer not to.
However, Lu Li had to come here again.
This time, the deployment he was leading was basically made up of the Molten Core team. The actual players of the Instance Dungeon, added together with the substitutes, totalled as many as 100 people. The three from Drizzle Court joined in again too.