Oni Mask of Deception

The Oni Mask of Deception is one of the three Oni Masks. The mask of Deception has the power of telekinesis.

History
At some point in time, the Mask of Deception and the other Oni Masks were created by the Oni.

Season 8: Sons of Garmadon
The Mask Of Deception

The Oni mask of Deception was in the Royal Palace, being protected by the Royal Family. Three days later, 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. While Ultra Violet and several other Sons of Garmadon members fend off against the defending Royal Guards, 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 in the vaults below the palace and tasks Lloyd and Harumi with fleeing with it. However, they are soon chased down by Ultra Violet and a few Sons of Garmadon members, who manage to knock it out of Harumi's hands and claim it before Lloyd and Harumi can.