I’d love to see they add an option to the players to set up their own list of combo field priorities, so when your finishers go off on top of multiple fields the one you want gets the combo.
The list should be easy to change (drag and drop?) so you can easily adapt to the situation (for example, your default setup is blasting fire fields, but party is dying so you want water fields to take priority, you just quickly drag and drop water to the top of the list).