Infernal Mask (Third-Party)

Source: EN World EN5IDER, “Fell Grafts: Demons & Devils”
The text on this page is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.

Prerequisite: Proficiency Bonus +3 or higher

Your visage can contort and transform into a rictus that resembles the devil from whence it came, filling your enemies with terror.

When a creature you can see starts its turn within 30 feet of you, you can spend a bonus action to create an illusion that uses the creature’s deepest fears to utterly horrify it. If the creature can see you, it must succeed on a Wisdom saving throw (DC 8 + your proficiency bonus + your Strength modifier) or be frightened until the end of its turn. By spending an action instead, you may affect a number of creatures equal to your proficiency bonus.