Kimura clan
Even though they played a large role in the 1st ninja war, they went unnoticed until late in the 2nd war when it was realized how much of an influence they held on the outcome of the battle. As a mercenary clan, they worked for whatever village it was that paid them the most. On rare occasions would single ninja from the clan leave to join a village since they had their own academy. Between the boarder of both the Fire and Wind countries, they would often send scouts, posing as Leaf and Sand shinobi to learn of useful information, ranging anywhere from new jutsu to war plans. Members of the clan are notorious for having exceptional senses, and also for the creation of the jutsu Zatôichi, causing blindness but increasing the other senses to super human levels, along with being masters of taijutsu
Taijiquan- a specialized form of taijutsu that utilizes not force but instead, the user is trained to the point where he is able to deflect blows aimed directly at him away from his body, move with the lightness and grace of a falling feather, and evade most attacks anyone can bring to bear against him.
Kekkei Genkai-Knights of the Round
This has 7 levels to it, each one more powerful than the last, but each one gets harder and harder to master. When used summons (depending on the level of mastery) one of the six knights to fight beside the user. While active the user is unable to move. Each knight is clad in medieval armor and each has its own unique weapon and ability. The seventh stage, when used, turns the user into a Knight of the Round, brandishing a large broad sword and a shield, the user is given superhuman strength but is unable to use any jutsu
(for simplicity i will use a scale of 1 to 10 for strength and speed
Level 1- str 2/10 spd 2/10. wields a small one handed battle ax infused with the power of wind, creating a powerful vortex whenever swung
Level 2- str 2/10 spd 4/10. wields a flail and shield that is able to deflect low rank jutsu
Level 3- str 5/10 spd 3/10. wields a bow and flaming arrows
Level 4- str 10/10 spd 2/10. wields a large two handed broad sword made of pure darkness, able to create an illusion where the opponent hit can see nothing but black for several minutes
Level 5- str 2/10 spd 10/10. wields a pair of spiked gauntlets tipped in poison that paralyzes the body part that is hit
Level 6- str 8/10 spd 8/10. wields a long sword and shield, able to absorb the power from most jutsu and throw back a shock wave of equal power
Level 7- str10/10 spd 10/10. turns the user into a knight wielding a large broad sword and a shield, that is able to use the power of any of the previous levels, and has superhuman strength