>>534115356
Piper and Miyabi aren't great together and Yuzuha does buff Miyabi but she's not as effective at it as Astra because most of Miyabi's damage comes from the regular fighting not the triggering of disorders and assaults. Yuzuha + Piper + a third would be a solid enough team or Miyabi + Astra (or most any other support barring Panda) would be good for an alternative team. I don't actually know how Yuzuha stands up to Lucy with Miyabi specifically though.

Anyway if you have Burnice or Bibian either one would do wonders with Yuzuha + Piper