Umbral Host

You are able to fuse the umbral energy of the Shadowfell into a obsidian gem, linking dark arcanic magic to the gem form a creature. Appearing in an unoccupied space within range, the host is friendly to you and your allies, and uses the statistics of a Shadow that are shown in the Monster Manual.

The host acts independently of you, but it always obeys your commands. In combat, it rolls its own initiative and acts on its own turn.

While the host is within 100 feet of you, you can communicate with it telepathically. Additionally, as an action, you can see through your familiar's eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses that the familiar has. During this time, you are deaf and blind with regard to your own sense