Destructive Messenger

Prerequisite

5th level, Pact of the Chain feature.

Description

You can use a 10-minute ritual to turn your familiar into a nondescript commoner of a race appropriate for the nearby area, dressed in the manner of a local peasant or vagabond. They lose all of their own statistics and use those of a commoner only, but they can speak and have all the normal abilities of a commoner of that race, and you can speak through them as well as using their senses as your familiar. You can return them to their true form as a bonus action. If they are reduced to 0 hit points while in their commoner form, they immediately explode in a shadowy conflagration, forcing anyone within 20 feet of them to make a Dexterity saving throw against your warlock spell DC. Those who fail take 4d8 necrotic damage, and those who succeed take half as much.