Originally Posted by
Demona3
I don't think it works anymore. The trick is, you run a dungeon with the person who has the corrupted ashbringer. When a weapon drops, the person with ashbringer takes it to the transmog guy. Once it's transmogged to look like ashbringer, the person takes it back to the other person in the dungeon and trades the weapon to them (since you can trade items for 2 hours), it should keep its transmog.
However, I heard this got nerfed. Either A: it makes the weapon no longer tradeable ... or B: it loses the transmog once you trade it back to the person.