I'm, uh, thoroughly stumped on Challenge 8. With the exception of Kirin (whom I must find a Santa Kirin to pair with), none of my teams have enough bulk to survive or +investment to survive more than two turns against Twinlits.
I can't use Zaerogoo x

because flipping Raphael, or any dark primary team.
The only shot I had at just punching through everything with a non LD team would be with Yamato Takeru, but I would have to deuvo my Takeru because
no dupes is awful Edit:
Today sucks less Would Ariel/Kiriko/Valk/Cloud/???/Ariel be acceptable when Ariel's tripledongs come out? I'm thinking Himi Udon for Attacker typing with Physical HP and autoheal for days, Arthur for yet another orb change, or Athena because Athena.
With the amount of fixed orb changes, I could probably fit Leilan or Meimei on there with no regrets as well.