I would like to request a suggestion concerning the "Ultimate Challenge" feature of the game.
There are a lot of ninjas that aren't available most of the time in the Ultimate Challenge.
I have some of the duo ninjas like "Minato and Kushina" and "Naruto and Sasuke" and "Pain and Konan" that are pretty much never available for use in the Ultimate Challenge.
And since the Ultimate Challenge has the best rewards in game, I think it truly puts a lot of people at a disadvantage when they do not own the ninjas that are always on there.
Thank you for your time!