How rare is this?

https://preview.redd.it/9ydypglvskne1.png?width=686&format=png&auto=webp&s=4706beeeed2399b7a16bbc1c00b9f2ef929ca018

This is a Big Abyssal Exalted Relic I caught from the Depths with a trident rod (abyssal enchant)