Amok

"Go away my beautiful Amok"

- Mayura An Amok is a blue feather creature monster about peoples emotions. A lot of feathers is created in Mayura's Hand Fan and led by Mayura while Ladybug and Cat Noir are tasked with capturing and purifying them

Appearance
Before it is turned into an amok by Mayura, the feather is pure white. However, once it becomes an amok, it turns blue

Creation and abilities
Mayura creates an amok by charging a feather with his dark energy. The purpose of an amok is to possess an important object of a person, forming a telepathic connection between the person and Mayura. Once the deal is made, the amok in the object releases a black and blue substance creat a monster. They also can squeeze through impossibly small spaces, even being able to move through the seal of a window pane.

Fate
The amok leaves the object it inhabits after it is destroyed. From there, Ladybug can catch it with her yo-yo in order to "de-evilize" it by removing the dark energy from it. Afterward, once the amok reverts back to being a normal feather, she releases it, and the feather is free, possibly returning to the countryside rather than to Mayura's Hand Fan