It’s not supposed to be a main robe, It’s supposed to be a swapout for situations in which def would be less desirable than other stats, such as the MP and wis that the robe will provide (I’ll put the new stats up later today probably, working on it rn, but I have classes.)
I know I haven’t talked about this yet, as the dungeon is still in progress, but the boss that drops this pretty much only shoots armor-piercing shots, and priests will be an extremely helpful class during the fight. I’m trying to follow the pattern I see with whitebag drops, they drop in locations that they would be useful in, such as Doom Bow droping from Septavious, a boss that makes it hard for non-piercing classes to hit by covering himself with mobs, and Puri, dropping from a status-effect heavy dungeon.