Oni

The Oni (also known as the Bringers of Doom) are a race of powerful demons with the power of destruction, led by the Omega. 
They are the first evil to ever come into existence, as well as the creators of the powerful Oni Masks. 
They once inhabited Oni land, a forbidden part of the Realm of Oni and Dragons, the first realm in existence. 
The Oni were at War with the Dragons until the First Spinjitzu Master was born. 
Hundreds of years prior, the surviving Oni left their realm with the goal to conquer/destroy all realms, including Earth before being summoned by Harumi.
Tarakudo's Oni Faction are malevolent demonic beings from Japanese folklore, who are rumored to eat the souls of disobedient children in Japanese fairy tales. 
In reality, the Oni are powerful demons, led by their lord, Tarakudo. 
They once ruled Feudal Japan until their spirits were ultimately imprisoned within the Oni Masks.
The Oni was defeated when their God, Omega was killed by Earth's Resistance leaders.
== Appearance ==
The Oni are tall, humanoid creatures with horns. 
They are all colored differently and usually consist of two different colors. 
While they are humanoid, some of them have non-humanoid limbs, for example wings, blades, etc. 
The Oni all wear traditional Japanese armor that cover most of their body.
Most of the members of the Oni resembles the Shadowkhan he summons.
== List of Known Oni ==
* General Aka
* General Ikazuki
* General Kiiro
* General Kozu
* General Kuro
* General Midori
* General Mosugurīn
* General Murasaki
* General Orenji
* General Rairakku
* Tarakudo (Lord)
* Decer
* Feartoc
* Ha-eed
* Venge
* Omega (God)
* Mystake
* Arumin (Hybrid)
* Garmadon (Hybrid)
* Wu (Hybrid)
== Status ==
Unknown.