I did Odie, Eironn, Koko, Alsa, and Cassadee. Koko front and center, Alsa to the left behind Koko, Eironn left and behind Alsa, and Odie far back left corner, with Cassadee in the far back right corner. Alsa and Eironn end up at the front left and right. Placed 86th in my district (i'm on S10, so I'm stuck with S1 gigawhales, so that ended up pretty good). Second round I replaced Cassadee with Reinier and put Alsa back/center, and Reinier adjacent so he teleported her. Bumped up to 74th. Last fight I placed smokey and koko left/right of center and kept Reinier and Alsa in the same place from round 2 (replaced Eironn with Smokey). Smokey got stunned pretty often so that positioning is definitely tricky with him. Round 3 ended up bumping me up to 70th despite all the smokey stuns. His buffs are just really strong as always.
Smokey instead of Scarlita has a higher damage potential. But you will need Phraesto at S+ in order to benefit from the shields, which is quite a steep requirement.
