Twilight-Kun
Pokemon World Champion
A lot less frequently than Lana and hasn't done anything interesting since bonding with Clefable, which then didn't go anywhere thanks to the release of the Ultra games and its subsequent shoehorning into the rest of the sagaI thought Lillie was the writer's pet?
Because Brionne could already blow bubbles sturdy enough to hold a human, as seen in the Kyogre episodeNagisa learning Bouncy Bubble would be cool but it doesn’t have to come at the cost of rendering Suiren’s main partner Pokemon obsolete, why do you think this a good idea?
Heck, Popplio could do it as well, as seen when she actually tried, thus triggering an evolution
Which is amusing since both of her evolution episodes involved her actually putting forth effort (blowing larger bubbles to become Brionne and swimming faster to become a Primarina)