You can either queue up abilities manually or click “auto battle” to allow the AI to fill them up for you. The problem is that to fill them up manually you need to navigate a menu system to select the ability even though the action is taking place in real time. The process is kind of clunky and you can lose time that could go towards using abilities.
Auto-battle on the other hand is quite efficient. It will use your current intel to play into mob strength or weaknesses and even auto calculate when it’s more efficient to use AE vs single attacks. The end result is you simply click the auto-battle button over and over. Occasionally it pays off to tell accelerate or cancel a queued command (it waits until you have enough action points to execute everything in your queue) but more often then not the only decision you need to make is when to swap in a healer or an extra ravager to push the chain gauge neither of which is rocket science.
So, even though the combat is relatively fast paced (or more likely because they have attempted to make it fast paced) there is no real substance. There is no need for meaningful input so tactical combat is out, there is little overall strategy, no decisions to make for where you will go, the whole impression is that you are simply clicking the auto-battle button over and over to advance to the next cut scene. From a game play perspective this game is a failure IMO.

