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%)||Muramasa|
|Uncommon - (10%)||(Nothing)|
|Rare - (3%)||(Nothing)|
* The Avenger has a 40% chance of appearning when you enter the Station of Ascension. You can also make it appear by defeating all of the enemies in the Station of Ascension, exiting and then re-entering the zone.