This Ability will not activate if the Pokemon is already below 50% HP. Golisopod Fairy Aura When this Pokemon is active, all Fairy-type moves on the field receive a 33% boost in power. If a Pokemon with Aura Break enters the field, Fairy-type attacks are reduced in power by 25%. ...
Nature and Ability are crucial on the capture stat screen to judge if you wanna add the mon to your current team for cases with multiple abilites like gluttony/pickup linoone. That said I'm not against showing that you already have the form, I just feel it makes UI look a bit cluttered...