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|
* Disma has a 5% chance that it will take the place of a Dark Lord in the Lhusu Mines - Site 5 or Site 6 South. It will only spawn if you have initiated the Hunt Club side quest and it will not spawn again after you have defeated it.