Orff Carmina (Magic Eating Beetles)

Strange Beetle creatures that are native to Wizardsbane Forest. They consume magic, burrowing inside of those who possess it to eat from the source, they are drawn to bigger, and bigger sources of magic to eat.
Used as a way for The Angels Of Rebirth to subdue and control the Clerics and Paladins they captured.
Some legends describe them as being agents of the Gods, one early myth about The One Who Does Not Sleep describes him taming some to keep an old gateway to the lands of the Fae locked up.