After watching more gameplay and hearing more impressions, I'm starting to see how important the creation of Sessions are within the combat, but I guess my real question is how they are formed- when you hit a weakness, do other characters automatically follow up with weakness strikes of their own? If that is the case, I can understand why continuously switching out party members for different dungeons- and, in fact, specializing certain characters around session "affinities", would be paramount. I wonder how skills unlock, though. I suppose Mirages, not the human characters, learn them?
So many questions that will likely be answered as soon as the game releases, but still!!! This combat system intrigues me so much!