Tried a Mei-Lin + Mika + Cassius team, and it worked really well. The card draw was a great help in setting up combos and extending them as much as possible. I have a few good +1AP epiphanies on my Draw cards, so I ended up having a lot of AP left over. I may even be able to drop Mika for Veronica if I ever draw her.
My second team remains an unsolved issue, though. I’m going to stick with Renoa + Nia, so if my third is not Cassius then maybe Rei? Or maybe even move Mika over here.