Oh, woe is the league... What a ripoff thread... Were've all the expert Wiichat Brawlers our league produced run off to--oh wait, AiB. =/ Ah well... No use crying over spilt Spicy Curry.
"Show improvements in all characters" outweighs clearing all events on normal in terms of requirements, though. Step up the difficulty to Hard; anyone can do those Events on normal.
And no, I'm keeping my dignity and pride, not signing up for this. =P No offense.