>>33181214Actually, rental teams can be edited once you cleared every colosseum once (an easy feat, even with the shitty rental teams). Once you do that, Gateway Colosseum has a mode that allows you to trade your shitmons in for something much better, essentially turning the game into Battle Factory+. The Pokemon you get from the rental trades are also properly EV trained, and at higher difficulties, have good IV spreads, too.
Not sure why so many people miss out on this feature.