Yuumi is the greatest champion ever (not sarcasm)
-She exposes bad ADC's -She exposes bad team coordination -She doesn't hardly die herself unless her teammates intentionally feed (basically anti feeder and nobody to blame but yourself for not working with her) -Great poke and utility
and my personal favorite;
-She's a literal Magical Cat.
What an absolutely soul crushing thin to be beaten by. It's not the Queen of Freljord, or a blind man with hard core martial arts, or even a man with a respectable giant sword or leet assassin... it's a Magical Cat that beat you. Just...a Magical Cat. Talk about a psychological weapon.