Homebrew:Dread Speech

(OOC: This is an implementation of the Dread Speech feat from The Crooked Moon)

You have articulated a few words of forbidden truth that resonate with—and fray—the fabric of creation, granting you the following benefits.

Eldritch Word.

As a bonus action, you can speak a magical word aloud to force a creature within 60 feet of yourself to make a Wisdom saving throw (DC = 8 plus your proficiency bonus and Intelligence, Wisdom, or Charisma modifier; choose the ability when you select this feat). On a failed save, the target is frightened of you until the start of your next turn. You can use this benefit safely once, and you regain the ability to do so when you finish a short or long rest. You can use it again before resting, but you take 1d6 necrotic damage, which can't be reduced or prevented in any way.

Shred Fate.

Your dread secrets can unravel the destiny of your foes. You can cast the bane spell using this benefit without requiring a material component, and your spellcasting ability for it is the ability you chose for Eldritch Word. Once you cast the spell using this benefit, you can't cast it that way again until you finish a long rest. You can also cast the spell using any spell slots you have.