Oni Masks

The Oni Masks are three powerful masks created by the Oni. Each mask has a unique individual ability, while all together they can open a portal to the Departed Realm and bring Garmadon back to the land of the living in his evil form. The Sons of Garmadon are searching for these masks to bring Garmadon back to life and conquer Ninjago City.

History
At some point in time, the three Oni Masks were created in the First Realm by the Oni. They would eventually end up in the realm of Ninjago through unknown means.

The Mask of Deception
Members of the Sons of Garmadon, lead by Mr. E, infiltrate Borg Tower, which kept the Oni Mask of Vengeance, which was hidden behind a painting of Cyrus Borg. The Sons of Garmadon proceed to escape the building, but they are suddenly caught in a battle with Lloyd. While the other Sons of Garmadon members were swiftly beaten, Mr. E manages to escape from Lloyd with the Oni Mask of Vengeance in tow.

Three days later, the full Ninja team arrive and reunite at Borg Tower, where they meet Hutchins, who informs them about the Oni Masks and how they would give the user tremendous power if they were ever united. He also informs them that the Oni Mask of Deception is currently being guarded at the Royal Palace. The Ninja are later assigned by the Royal Family to protect the Oni Mask of Deception from a potential Sons of Garmadon attack in the future.

The Jade Princess
As predicted, the Sons of Garmadon attack the Royal Palace in hopes of stealing the Oni Mask of Deception. Mr. E rides his bike through the palace and eventually finds where the mask is located. However, the Ninja corner him in front of the mask's display case. Unknown to the Ninja, Mr. E brought along the Oni Mask of Vengeance and puts it on, where it gives Mr. E two additional arms and swords. Mr. E fights off the Ninja, eventually knocking them down after utilizing the mask's power to use Jay's Lightning against them. As Mr. E claims the Oni Mask of Deception, Kai, in a last-ditch attempt to stop him, blasts a fireball at him, which ultimately shatters the Oni Mask of Deception in his hands.

However, it is revealed that the Oni Mask of Deception that was on display was a fake; Hutchins had hidden the real mask elsewhere and tasks Lloyd and Harumi with fleeing with it. However, they are soon chased down by Ultra Violet, who manages to knock it out of Harumi's hands and claims it.

List of Masks
When all three are united together at the Temple of Resurrection, the user can bring back Garmadon from the Departed Realm.
 * Oni Mask of Vengeance (Red) - Makes the user become a swordmaster with two additional arms and gives him the ability to absorb other people's powers. This mask was kept at Borg Tower.
 * Oni Mask of Deception (Orange) - Allows the user to control, move, and manipulate objects by using telekinesis. This mask was guarded by the Royal Family in the Royal Palace.
 * Oni Mask of Hatred (Purple) - Turns the user's skin into invulnerable magma stone and lava. It is currently unknown where this mask is kept.

Appearances
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 * 70639 Street Race of the Snake Jaguar (Vengeance)
 * 70640 S.O.G. Headquarters (Hatred)
 * 70641 Ninja Nightcrawler (Hatred)
 * 70642 Killow vs. Samurai X (Deception)
 * 70643 Temple of Resurrection (All)

Season 8: Sons of Garmadon

 * 75. "The Mask of Deception"
 * 76. "The Jade Princess"}}

Videos
Oni-Masken