Feather of Ma'at
The Feather of Ma'at is an item used in the Weighing of the Heart ritual. It is weighed against the sins of a person.
Tragoedia calls Chazz Princeton's Light and Darkness Dragon by this name.
Akhenaden, Kalim and Seto used it to perform Tragoedia's weighing and by Shadi to perform Kanekura's.