For rares, Jinpachi is probs best as support for edo ninja, similar for Sasori. Kushimaru was OP on release but has dropped off allot. Most of the rest are bad, or of limited use.

10 pulls, pakura can see use to buff wind ninja, and fuguki sees some play in water teams, but your usually better just building a different team.

Super rares you want Madara since KCM has been replaced with SO6P. Not that you get a choice.