Angel of Vengeance

Angels of vengeance, also known as umulti, begin their existences as planetars, sent by greater divine powers to seek justice and retribution for those wronged. If a planetar performs evil, immoral, or unsavory acts while delivering justice, it can become corrupted. Its evil acts cause it to waste away physically and spiritually, transforming into an angel of vengeance.
Angels of vengeance target those who commit transgressions against divine entities, often regardless of the transgression's severity. These angels aim to kill, not to parley, and an angel of vengeance speaks only to let a victim know that they are about to die.
An angel of vengeance's true form is large fiery eye within the center of five concentric rings. The rings are often made of a material that befits the divine power that it originally worked for; for example, angels created by fire deities evoke rings of fire, while those created by wealth deities often bear rings of precious metals. Angels of vengeance often disguise themselves as silent, purposeful humanoids clad in armor and wielding swords.

Many commonfolk pray to the angels, lifting their tear-streaked faces to the sky in search of a powerful being who can fix their problems, remedy their grievances, or show them mercy. What the gods who answer those prayers fail to reveal is that the angels sent on their behalf are often more terrifying than the demons and devils everyone fears. These horrors are creatures of celestial provenance that are either terrifying in their natural form or warped versions of their benign selves through interactions with ever-demanding mortals.