Name: Koryugan (Eye of detention)
It is a doujutsu with powerful genjutsu that can keep a person isolated in a place with nothing, when in fact the person is standing in front of the user, the thought is elsewhere when you can take to kill opponent.
The only way to break the genjutsu and dropping a jutsu in place that gets stuck, so I think VReg has this force.
The chakra runs slowly, but once you master more, less chakra will use.
Other skills:
Long-range vision
More reflection
When you reach the power maximum you can store up to 20 people in genjutsu becoming a formidable doujutsu.
To use have to do hand signal (Tiger) and look in the opponent.
History: was seen several decades atrais used by a legendary shinobi, not much is known about him, Neim as was defeated, the more he got stuck in own genjutsu forever.

Add other ideas if you want to add in the game.(and let me know if they put.)

We all take different paths in life to achieve our goals.  In the end nami no kishi's goals is to kill and hunt rogue ninjas. Though our paths and views  might be different our dedication to kill and hunt rogue ninjas are the same.

Well, I think so, now only missing 4 Ronin!

But I have a certainty, I will not end my life trying to end up with a legendary shinobi! 

Name: Mykel
Gender: Male
Village: Yukigakure
Specialization(Genjutsu, Taijutsu, etc.): Genjutsu

"WHEN HUNTED BY RONIN, DEATH ISN'T YOUR CHOICE. IT'S YOUR DESTINY!"