Tenebris

The Nightmares/The Tenebris are a sibling species to a Luoda. They are Luoda who have been corrupted and tortured to the point of changing from dreams into nightmares.

Horse/Wolf
The Tenebris often appear as a horse-like creatures, though some are more wolf-like. They are dark like the shadows often black or a dark color but their outline glows slightly. Their eyes and mouth both glow a bright color, this color varies depending on individuals. They have a wispy shadow-like form. They often are four legged but at times they lose their back legs and instead are more like a ghost or shadow. They have dark fangs and manes that vary depending on individual

Humanoid
The Tenebris are a wispy ghost-like humanoid. They have fluffy hair that matches their horse form, being dark with lighter colors around the edges. Their skin is either oddly dark or oddly pale. They have faint fangs and their eyes glow as well as their mouths.

Magic
The Tenebris can also appear as dark shadowy balls of magic, this is almost identical to a Luoda however, they don't share the same weakness as Luoda. When bonded with someone, the Tenebris will be fueled by their strength and magic. They are more corruptive and are more like corrupted Luoda.

Other
The Tenebris can take any shape they please. They can perfectly appear as other people and often use this to their advantage

Powers
Their magic specializes in the mind, corruption,darkness, and dreams. They are immortal or at least appear to be. They turn the dreams of people into nightmares, are unable to be blocked without huge difficulty from dreams, and often know and use their insecurities. They often whisper things in the back of people's heads. They manipulate the mind, though they can't fully takeover person until they accept them in. Then they take their soul and body, making them a dark nightmare version of themselves like the Tenebris.

Corruption
The Tenebris enjoy corrupting others, often taking great pleasure in it. They wish to make others like them so they won't be alone. While some haunt the dreams of many or have multiple targets, some focus their energy on one target. They manipulate them, slowly breaking them until they eventually accept them in. They play with their guilt, fears, regrets, anger, sadness, loneliness, and other negative emotions. They sometimes will target other people to hurt their main targets and to try to force  him into giving in. They appear to be immortal and are willing to wait as long as it takes to corrupt other, enjoying the challenge. Luoda are often targets to them, as their weaker innocent sibling species.

Creation
Tenebris are either luoda or other species made from dreams that have been corrupted, or are descended from the original tenebris.

Creator
It's believed the Tenebris were created by the Luoda creators as an attempt to defend the Luoda against hunters.