Why are you not able to use event legendaries for anything? Battle Tower/Frontier. In game competitive, nothing. It's not like they're even good, there's no reason to ban them other than "oh they're event legendaries." Meanwhile actual broken legendaries are allowed to be used. Sure, I'll just use it in
the in-game story since that's the only thing I can do with them. Let's just completely fuck it's EVs and make it more of a pain to train for the nothing