Tenmaogan

Tenmaogan (Heavenly Demon King Eye 天魔王眼) is a powerful Dojutsu originating from the Era of Warren Clans wielded only by the head of the head of the Oda Clan Oda Nobunaga, also known as Dairokuten-Maō; the Demon King of the Sixth Heaven. It is said to be on par or greater than the Sharingan and Byakugan and rivals the Rinnegan in strength and power.

Appearance
The Tenmaogan stays active without Chakra like the Rinnegan once unlocked. It changes the color of the iris to gold with the Oda Mokko clan symbol in black within it with the center acting as the iris. When chakra is channeled into it to enhance its further abilities the sclera or "whites" of the eyes also turn black. It can also evolve into the Shintenmaogan (True Heavenly Demon King's Eye) which changes it to resemble the Kiri-mon symbol. Though since only one user has ever been recorded it may be different if another user where ever discovered and unlocked the Shintenmaogan

Abilities
The abilities of the Tenmaogan are as numerous as the Sharingan and the Rinnegan. It can great weapons and armor out of gold and black chakra which resembles ornate samurai armor called the Maō no Tengoku (Heavenly Regalia of the Demon King). Which can absorb most ninjutsu, repel genjutsu, and soften the blows of taijutsu. The weapons Are only limited by the users imagination and can either be used like Chakra Scalpels to damage internal organs without harming the skin or be infused with elemental chakra to make devastating attacks.

It can also "breath life" into real weapons and transform them into Living Weapons. Limiting them to usually only one element but making them far more powerful.

It can also summon an avatar of living chakra armor similar to Susanoo but only twice as large as an average adult male called a Maneru (Mimic まねる). It mimics the movements of the user while wielding a odachi

And lastly it gives the user the ability to "impose their authority" on the minds of others. It effectively forces others to swear fealty to the user and can only be broken or resisted by those with a strong will or great ambitions. Those under the effects of Kōtei no Ishi (The Emperor's Will 皇帝の意志) can gave portions of the Tenmaogan's power granted to them.

The Shintenmaogan strengthens these abilities immensely allowing the user to make a Maneru equal in size to a Biju and take control of entire populations with the Kōtei no Ishi at once and granting them the same level of power as the base form of the Tenmaogan.

It also grants new abilities such as a Chakra Mode and psychokinetic powers on par with the Tenseigan.

The draw back to all of these abilities though is that they all require a great amount of chakra and control to use effectively and the Maneru has a will of it's own which will try to take control of the user if their will is weak, and by default a weak willed user is unable to use the Kōtei no Ishi which will instead turn inward and destroy the user's mind if they attempt it.