We absolutely need Rin!

She will actually add to the assist links, and she's so awesome! She needs more credit, she's underrated!

Why Rin?

She has the power of the Jincuriki, and She surgically removed an eye and implanted it into kakashi's eye socket. in the middle of a battlefield! She has extremely impressive medical ninjutsu skill, especially for her age.

She was willing to lay her life down when the time came, without hesitation. when kakashi froze like a wuss.

That's some impressive stuffs!