Avatar Of Knowledge

Construct Of The Mind. The avatar it self is immune to all damage types and conditions. It knows and can speak all languages and is proficient in all skills.

Mind Essence. The avatar can only lose its hp. if the source of its creation is destroyed in full. This could be a library full of sorcery tomes, a wizard that tries to stall time or a powerful artifact. Also, the avatar cannot be more than 300 ft. away from that source.

Ethereal Force. The avatar's different forms convert all damage types to force damage.

Avatar of Knowledge. The avatar can use its action to disperse into the air and appear in a different unoccupied space from its original one. When it does so, it appears as a different creature or number of creatures in ethereal form of challenge rating equal to or less than 12. If there is more than one creature's ethereal form appearing they can do so in an entirely different unoccupied spaces. The creatures get a new initiative, always playing after the avatar. At the start of the avatar's turn it can choose to use it's action again to do the same thing, its forms changing, as well as their locations. The avatar cannot turn into legendary creatures. To add flavor, the avatar could turn into creatures known by its source of creation.