The Grimm King

Slight Spoilers if you aren't up-to-date with the show

Semblance: Can use others semblance as long as he follows the condition to learn it

Told name of semblance

What it does (can either be told or figure it out himself)

See the semblance used

The Grimm Crown Ability: The ability to turn an unintelligent Grimm into a weapon

The Grimm Crown is a Grimm whose sole purpose is to find the King

Grimm Ability: Corruption-Able to transform a human or Faunus into a Grimm. If they are strong enough they will be a humanoid Grimm (like Salem and the King). They still have their semblance as a humanoid Grimm. The corruption will also make them loyal to the King and unable to betray him.

People he has corrupted that have kept their human form

- Summer Rose

- Pyrrha Nikos

- Weiss's Mother (she doesn't have a cannon name)

- Ozpin's Body

- His mind still retained his memories even though his soul is in Oscar.

- Sienna Kahn

He is in charge of all of the high-level Grimm that are Self-aware and sentient. Most of them are mythical beast and are all really strong. The high-level Grimm won't listen to Salem because they do not recognize her as their leader.

Inspiration – Hail to the King by Avenged Sevenfold