A suggestion i had in my mind is having different types of auras for Baston, for example having a Super Saiyan 2 aura, a Super Saiyan 3 aura, etc etc. it'll basically be cosmetic with no real affect on the gameplay

With how you change the aura, perhaps it can be in the colors section where you can select the aura icon and change the type of aura you want for your character/form

I think adding something like this would give more options for characters like for example a Super Saiyan 2 Gohan with a more accurate aura type