The Teamfighters

As the LCS continues, I want to see the team comps get more interesting(not that they aren't but hear me out). I know that most of the game is decided by the early game and team fights. In the team fights, you need damage in 2 forms, a duelist(focusing 1 target @ a time) and the AOE damge(abilities hit the whole enemy team). Here's my idea for a AOE team comp

Leona Support Hecarim Top Fizz Mid Gnar ADC Karma Jungle

Fizz could engage w/ ult followed up my Gnar ult, then (Mega)Gnar Combo, then have Karma ult, Q, and focus the squishies w/ Leona, Fizz could go in w/ his E, Hecarim and Leona ult can be just in case they scurry away(probly would), Hecarim would be in the middle of the fight spamming Q w/ W active.

I think there are other champs like Katarina but this is what I'd do, I'd love to hear who you would have in a team fight