Morro

Morro may have been my first pupil, but he was also my greatest regret. Before he was a cursed spirit, it wasn't I who found him...but he who found me. My brother had just gone off to train under Master Chen, which gave me time to attempt my hand at teaching. Morro was the perfect student. He did everything that was ever asked of him.

Wu ninja

Morro was an Elemental MasterWind, who believed he was destined to be the Green Ninja. Found by Master Wu when he was a child and trained as his master's first student, he became determined to prove destiny wrong after the Golden Weapons didn't choose him as the fabled savior. After leaving Wu in search of his destiny, Morro perished in the Caves of Despair while searching for the Tomb of the First Spinjitzu Master, and his spirit was banished to the Cursed Realm, as a result of his previous actions.

At the end of the Second Serpentine War, Morro had escaped from his imprisonment when Garmadon was banished to the Cursed Realm. Intending to find the Realm Crystal hidden in the First Spinjitzu Master's tomb, Morro possessed Lloyd Garmadon, as only a Spinjitzu Master could locate the tomb. He then embarked on a quest, during which he used the Allied Armor of Azure to conjure his allies from the Cursed Realm at will. After a long journey, Morro abandoned Lloyd’s body and obtained the Crystal, and freed his master in an effort to curse the Sixteen Realms. With The Preeminent in Ninjago, Morro fought Lloyd in a battle that traversed through various realms. When Nya unlocked her True Potential and incapacitated the beast, Morro was seized by one of its tentacles. Desperately, Wu attempted to save him, but Morro ultimately realized that he was beyond saving, prompting him to give Wu the Crystal before letting go of his hand, and falling into the sea and dissolving.

Months after his death, a statue of Morro was placed in the Ninjago Museum of History as part of the new Hall of Villainy exhibit. When Cole (lured by Yang) accidentall

As Garmadon opened the portal to the Cursed Realm intending to free the Anacondrai generals, Morro was able to escape the dimension. While the ninja celebrated their victory after the Second Serpentine War, a small dark tornado appeared in the sky carrying Morro inside.

Possession Winds of Change Morro made his way to the Ninjago Museum of History where the Allied Armor of Azure was being kept. He possessed the Night Watchman, then called Steep Wisdom and requested for Lloyd to come.

When the true Green Ninja, his old Master's nephew, arrived at the museum, Morro—still in the body of the Watchman—led him to a back room where he attempted to attack him with a sledgehammer. The watchman was soon buried under several boxes and Morro left his body to possess several other things in the room, such as a portrait of Chen, a Serpentine statue, and a pile of sand. After weakening the Green Ninja, he took possession of Lloyd himself.

With the Allied Armor and the control of the Green Ninja's body, the ninja lost their powers, and Morro journeyed to Steep Wisdom to seek the Staff of the First Spinjitzu Master, now carried by his former Master. He faced the ninja for the first time, using his power of Wind to easily defeat them. Yet, before he was able to obtain the staff, Wu and the ninja escaped in the Destiny's Bounty. Undeterred, Morro summoned a corrupted version of Lloyd's Energy Dragon to chase after them.

Wind

Morro was a kind boy during his lifetime, but after becoming a ghost, he became cynical and arrogant.

Morro has black hair with a green streak, he is dressed in a green ninja costume with a rope.