Oni Mask of Deception

The Oni Mask of Deception is one of the three Oni Masks. When worn, it will grant the user the ability of telekinesis, allowing the user to move objects with the power of their thoughts.

History
At some point in time, the Oni Mask of Deception and the other Oni Masks were created by the Oni in the Realm of Oni and Dragons and brought to the realm of Ninjago. It would eventually fall into the possession of the Royal Family and remained in the Royal Palace.

The Mask of Deception
The Ninja were assigned by the Royal Family to protect the Oni Mask of Deception from a potential Sons of Garmadon attack. Hutchins proceeded to show the mask in its display case to the Ninja.

Later on, Lloyd looks at the mask's display case before checking up on Harumi, only to find her missing.

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.

Snake Jaguar
Killow uses the Oni Mask of Deception to lift rocks into the air in attempt to crush Zane during the bike race after finding out he was a spy, trying to make him lose the race. However, Zane manages to dodge all of his attacks, forcing Killow to escape with the mask while Mr. E fights Zane.

The Quiet One
Killow uses the Oni Mask of Deception's telekinetic powers to create a bridge of rocks over a trench for the Sons of Garmadon to cross in order to reach the crashed Destiny's Bounty. After reaching the Bounty, Killow and Mr. E both put on the Oni Masks of Deception and Vengeance on, respectively, when confronting the Ninja.

Game of Masks
Killow uses the Oni Mask of Deception during the Ninja and the Sons of Garmadon's battle with the Sea Monster.

Dread on Arrival
Killow uses the Oni Mask of Deception to cause carnage against the Ninjago police force during their attack on the Royal Palace, which was taken over by the Sons of Garmadon and coverted into the Temple of Resurrection. The Oni Mask of Deception would later be used in the resurrection ritual with the other two masks. However, the Ninja would stop the ritual before it could be complete. The Ninjago police force soon arrives, arresting the Sons of Garmadon and presumably confiscating the masks.