Admittedly, the effect was just something I quickly thought up. I wasn't going to require Confusuion for the tails damage at first, but I thought it would be a little too overpowered. Since "Bumble" means "to act in a Confused manner," I decided to implement Confusion into the effect. I was going to make the attack Confuse Shining Dunsparce, but then I thought it would be too underpowered. In the end, this is the effect I settled on. I thought it balanced out well enough, but you're more knowledgeable on that subject.
Why wouldn't the pink part work in print?