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%)||Scathe Mote|
|Uncommon - (10%)||(Nothing)|
|Rare - (3%)||(Nothing)|
* The Terror Tyrant has a 40% chance of appearing each time you enter the Broken Sands zone in the Dalmasca Estersand. Just leave and re-enter until it appears. Note that you need to have initiated the Hunt Club side quest before Terror Tyrant will appear.