Resonant Echo

Resonant Echo is a homebrew spell created by Matthew Mercer for Campaign Two: The Mighty Nein.

Spell description
As an action, the caster can make a shadowy clone of themselves. They can use the clone to cast one spell. The clone then vanishes after using that spell. It has a limited number of hit points, but greater than thirteen.

Trivia

 * An ability similar (although not identical) to the spell, known as "Manifest Echo", is a feature of the Echo Knight Fighter subclass, which was included in the Explorer's Guide to Wildemount. The spell does not appear in the book.
 * Matt explained this saying that the spell was Essek's specialty, so only him and Caleb know how to cast it.

Appearances

 * Critical Role — Campaign 2: The Mighty Nein