Spirits of Nature
The Spirits of Nature are mighty beings, living either in the real world or in the Umbra, the spirit world. They are often associated with natural phenomenons and are believed to control them. Seeing one of the spirits is a rare occasion and it's up to destiny to decide, wether the observer shall survive the sighting or not.
The mightiest spirits to be known. They are often tied to cosmic events, whilst their name being "Celestial Spirits"
Spirits who are tied to the sky. They are often responsible for the weather or atmospheric events.
Spirits who are tied to the ocean. They often live in the deep waters of oceans or rivers and control the flow of water.
Spirits who are tied with the element of "Earth". They are often known for creating or manipulating minerals, terraforming or even controlling plants, trees and flowers.
Spirits who are succumbed to darkness, either being infected by a dark heart or inheriting dark spiritual energy on themselves.
Common lower tier spirits, who are too weak to be considered one of the big categories. They often don't inherit any special powers.