Would it really be that bad to have a standard wizard in robes? How about a badass ninja who isn't a tank and doesn't look like Shredder from TMNT? You can make him "unique" through his personality, his quotes, minor touches to his costume, and so on.
Also, what's with the fetish for asymmetical gloves? Riven, Maokai, the list goes on. Having a champion with one big glove and one small one doesn't make him/her cool or unique -- it just looks stupid, aesthetically.
Cliches are cliches for a reason -- because they're cool/work well. They're not bad in small amounts and when spun in a new way.
TL;DR: Give me mah ninja in a black ninja suit with two katanas.
Roit, ploiz. (British accent)