Bestiary entry from the Clan Primer:
This creature always drops a trophy when it is defeated. This trophy is used in the Hunt Club side quest which involves trading in the trophies for items, armor and accessories.
|Common - (55%)||(Nothing)|
|Uncommon - (10%)||(Nothing)|
|Rare - (3%)||Mirage Vest|
* The Dheed has a 40% chance of appearing when you enter the Skyreach Ridge area of the Mosphoran Highwaste. Just enter the Empyrean Seat area where Exodus is fought and re-enter the Skyreach Ridge until it appears. Note that it will only appear once you have initiated the Hunt Club side quest.