WotLK Trade on warmane question

[Drooouid]

Hey, I just got my second Reins of the Blue Drake from the Oculus HC dungeon, and since I already have it I have no use of it. I was looking at the warmane trade, and I noticed the deathcharger mount from Stratholme is getting sold. Is it possible to sell this aswell via warmane trade? in that case, how? The mount does not show up in my inventory on the website of tradeable items, though I've never used the trade system before.

[Thorbjorn]

Crimson Deathcharger that's being sold on trade isn't a mount from Stratholme. It's a BoE mount that can drop from a chest spawning after a player wearing Shadowmourne kills LK.
You can't sell your BoP drake on trade.

[Mitzen]

Crimson Deathcharger that's being sold on trade isn't a mount from Stratholme. It's a BoE mount that can drop from a chest spawning after a player wearing Shadowmourne kills LK.

Just to clarify: Only if you do the Shadowmourne quest chain, the chest with its contents appears.

[Drooouid]

Yeah thank you both!