Green Ninja

The Green Ninja is the most powerful ninja of all. The best of the four ninjas will become him, and fight the Great Devourer. His Spinjitzu tornado appears to be similar to Sensei Wu's and Lord Garmadon's, only green. He is not in any sets yet. It has been said that it will be revealed who he is in episode 10 of Ninjago: Rise of the Snakes. The green ninja is Lloyd Garmadon

Identity
The Ninja is noted to have traits of all the Ninja, including Cole's strength, Kai's fire powers, and the use of Jay's Nunchucks, at least in Zane's vision. Some guesses as to the identity of the Ninja point out the leadership of Cole or the unique inner spirit of Zane. Some rumors say that the Green Ninja is Lloyd Garmadon, though it appears that would have to take place years in the future, because the Green Ninja is much taller than Lloyd, who has yet to be trained as a Ninja, if he ever will be at all. It is worth nothing that the Green Ninja's eyebrows do not match those of any of the Ninja: they are thinner than any of the Ninja's, especially Cole's, but also thinner than Kai's, are not as angular as Zane's, and lack Jay's scar.

Another possibiliy is that the green ninja is a combination of all of the ninja due to it having traits from all of them.

Appearance
The Green Ninja has dark silver shoulderpads, a silver plate on his green ninja hood, a green torso with darker green arms, black hands, and green legs.