Although a good arc, Pesky Clown does look like a "out of nothing Dragon at the worst moment at the worst place" type of character, Do-S could make a better job at already coming up with a plan against him, but she lacks power to defeat him, let alone
forcing him into his monster form, and I don't know what excuse they would give to make her that much stronger, she can grow, sure, but could they really go for "she got a massive buff and that’s it" ?
I agree that it has a good chance, but I honestly hope the disciples don't appear at all, because I can already see Amai Mask jobbing next to them while Murata draws him pathetic and the disciples a bunch of badasses
If they do, I hope Do-S is their focus in a fight, leaving Pesky Clown and Amai Mask alone to do their fight