User blog comment:Supp0rt4n00bz/Champions and their "defining" skills/@comment-5197447-20130703122350

i was exactly think of that, some days ago. And it's true if the key skill was removed the champ would not be that champ again. Some examples i think:

Ahri - Charm

Lulu - the polymorf skill (whimsy, i think ?)

Karma - Mantra

Sona - Crescendo

Soraka - Wish

Karthus - Requiem

Zac - his passive

Vayne - tumble

Diana - Lunar Rush

For me those are good examples :)