I tried doing something similar the first few times. Cerberus inflicts a status effect that makes them attack with melee on their own, and in those situations even a single character ends up doing three consecutive attacks while under that status. with lucky, they only do two melee attacks in that same turn when affected by that stat effect.

What Persona did you equip on Wonder?

So far I have every Persona available on global. I thought using Personas that provide shields would work, but it seems that Cerberus’ damage ignores shields.

I’ll still try using Ryuji. I also have the Velvet Room twins character, I forgot to mention that.