This can be very confusing (why would you ever want to end your own turn?), so I wanted to give a few examples of situations where it could be very interesting to use this turn-ending power
Iono, Alternative Art Last, but certainly not least, Alternative Art Iono
Green and red can do plenty with extra lands, and red has many tools to increase the damage dealt by ping effects
Finding a way to make Swordswoman immune to destruction by battle, she could attack into every monster on the opponents field to deal out massive damage
Kyurem EX #86 Pokemon Ancient Origins Keep track of your collection value over time
Facilier is no slouch himself, contributing three lore when he quests or four strength if you decide to challenge an opponents character - with five willpower to help shake off any counterattacks