Quill is a summoned weapon that is featured in several abilities for both Scholar and Summoner. Most notably, their summoning animations for Carbuncle and Eos. I do not recommend modding this weapon as it has no weapon.pap animation file, meaning it lacks animations. If you do plan on editing this weapon, you are limited to other weapons that do not animate.
This weapon has several technical details that need to be considered when creating a replacement.
This weapon has no animation file to replace and cannot be replaced with something that animates. If you want to do something that animates, you'll need to look to a different summoned weapon.
This weapon replacement generally involves several basic parts
Model replacement
Texture replacement
Skeleton replacement
In addition to the basic parts of the replacement, there are often other factors to consider that are more advanced edits
Basic Asset Information
Weapon ID: w1799
Model File: chara/weapon/w1799/obj/body/b0001/model/w1799b0001.mdl
Skeleton File: chara/weapon/w1799/skeleton/base/b0001/skl_w1799b0001.sklb
Weapon Animation File: none