Thinking about giving a special form to Tails, what do you think?
Since I've already stated multiple times that he can't go Super under normal conditions, I've decided to give him another form, with Time Stones instead of Chaos Emeralds, since he uses them a lot. Let's call it Chrono Form. In that form, Tails would be Hyper aware of the time flow: what happened in the past, happening right now and will happen in the future at the same time and will be able to move freely through the time and make it go slower or faster around him at will. As a downside for using such power, we can use huge energy drain, which will exhaust him quickly and cause him to detransform and be unable to do anything else. I can also use something drastic as using it damages his memories or something lighter, like him not being able to think as well as he normally does due to the amount of information his brain has to process while using that form.