Magni is an ancient sword that was crafted for Antonio Bello and is now in possession of Eren Jeager. It can be used to restore the peace between Mafia. However the Mafia leaders do not want peace and will do anything to destroy it.
Magni is used like any other blade. It has powers but to unlock them the owner must be wearing a locket and inflict some sort of damage on themselves.
It is rarely used as it is too powerful for the jobs Eren needs to do. When the other Mafia gangs start attacking, he will have to use it against them.
- The name 'Magni' means "might, strong"
- Magni has had ten previous owners and every single one has died.