The Transmogrification system lets you replace the appearance of an item with the appearance of another item.
When you kill monsters that drop items, you will automatically have the appearances of the looted items unlocked.
If you are hunting in a party, everyone eligible for the loot will also unlock the appearances.
Appearances can be additionally unlocked by completing quests that reward items.
To apply an appearance, simply access the Transmogrification window by pressing More -> Transmog button in the client.
Due to a few limitations and reasons the following items are excluded from the Transmogrification system:
- Items with charges
- Item that are stackable
- Items that change their appearance on equip (e.g. soft boots)