Ataku's Mark is a non-mailable Item belonging to the BIONICLE Campaign, which is used to befriend Skrall.
How to Obtain[]
This Item can be obtained by trading Atakus fifty Thornax on his Trade Module.
Trivia[]
The name of the Item is incorrect as the Bionicle's name is Atakus. It should be named "Atakus' Mark" or possible "Atakus's Mark."