Could Oasis please give better ninjas as rewards for reaching Six Paths rank in arena?

As f2p, it is already hard to do so and getting frags of ninjas we wont use are abit annoying.

I would actually accept even just 10 frags of rare ninja rather the present ones.

The only good thing is the 6 SS that we get.
Thank you and hoping the Oasis team or moderator will read this and try to implement it.
Love the game tho and Great Plates event.
:)