Wow I realized you could move pieces like that but I had to rewatch your first move several times to even process it. I suppose expecting this gameplay might be a problem from the first fight. It might need to be possible to either explain that this kind of gameplay is required to play through several tutorials, or make the first fight possible to win easily with less complex gameplay and make it progressively harder or ideally a mix of both.
In my opinion I think people would react better to flashy bonuses to doing combo things rather than forcing people to do it for some kind of condition. Additive is a great idea to balance out some of the damage while still rewarding higher combos.