|Kinjutsu: Battle Soul Jutsu|
|Training Time||Can't learn from academy|
|Training Time (Friend)||Can't learn from friend|
Cast Strengthen on the user: Increases the user's attack damage by 5% for 10 turns.
Receiving it as random prize from the Ninja Scratch Card but it is rare to get.
Also, during Christmas 2014, this skill can be obtained by luck in the Christmas Gacha.