Sensei Yang
Real name: Kodokuna Yang
Full name: Kodukuna Yang
Aliases: Master Kodokuna Yang
Alignment: Neutral
First appearance: Ghost Story (pictured) / set 70590 Airjitzu Battle Grounds
Place of birth: Unknown possibly ninjago
Occupation: Airjitzu master
Base: Temple of airjitzu
Relatives: None
Gender: Male
Height: 5'6 • 168 cm
Weight: -
Eye color: Black
Hair color: No Hair
Superpowers: Ability Shift, Acausality, Agility, Animation, Bullet Time, Cold Resistance, Darkforce Manipulation, Dexterity, Dimensional Travel, Durability, Element Control, Endurance, Energy Resistance, Enhanced Hearing, Enhanced Memory, Enhanced Senses, Enhanced Sight, Enhanced Smell, Enhanced Touch, Fear Manipulation, Flight, Higher Dimensional Manipulation, Illusions, Immortality, Insanity, Intangibility, Intelligence, Invisibility, Invulnerability, Life Manipulation, Light Control, Longevity, Magic, Marksmanship, Master Martial Artist, Necromancy, Necromancy, Non-Corporeal, Non-Physical Interaction, Peak Human Condition, Phasing, Portal Creation, Possession, Power Bestowal, Pressure Points, Reality Warping, Reflexes, Resurrection, Sealing, Self-Sustenance, Soul Manipulation, Spatial Manipulation, Stamina, Stealth, Summoning, Super Strength, Teleportation, Time Manipulation, Timeframe Control, Toxin and Disease Resistance, Transmutation, Water Control, Weapon-based Powers, Weapons Master
Stats: intelligence 100, strength 40, speed 35, durability 85, power 100, combat 100

History:
At an unknown point in time, Yang went on a quest to master all martial arts, learning Spinjitzu, Fang Kwon Do, and many others in his journey. From his accumulated knowledge, Yang invented the art of Airjitzu. However, growing old at the time he created Airjitzu, he decided to preserve his work by passing it down to his students, which he had gathered shortly after he created the martial art. He was an excellent master who even had a statue of himself built before the Temple of Airjitzu in his honor. However, his pupils were afraid of him because of his strict teachings, causing him to become worried he would not be remembered as a good master, or remembered at all. He later discovered the forbidden Yin Blade and planned to use its dark magic to attain immortality and live forever as the greatest master of all time. After testing the Blade's magic on several trees, Yang decides performing the ritual atop his Temple only to accidentally curse the entire Temple of Airjitzu, transforming himself and his students into Ghosts to haunt the Temple for the rest of time. As master of the haunted Temple, he eventually grew mad and enslaved his students with the power of the Yin Blade, binding their wills to his power. At some point, Yang would lose the Yin Blade, where it would be placed in a Clearstone case at the Ninjago Museum of History along with a description and portrait of him.

Powers:
No one knows when Yang lost his mind. The creator of Airjitzu was strict and feared by his students from the start. He began to make them stay behind after school, then he locked them in the attic and finally he cursed them, trapping them in the Temple of Airjitzu forever. Now he prowls his dojo as a ghost for eternity (without so much as a TV to pass the time), ready to share his bad luck, as Cole discovered to his cost!