Lil help plz

Looking for (essentially) kit bombers. You drop your entire kit, QWER, and your target(s) die. Assuming all skills land and yada yada. That or a duelist. Need one each spot, don't know all champs by heart- own most. Need community opinion.

Top: ??? Mid: Ahri, Katarina, Yasuo (not a kit dropper, but a fantastic duelist) Jungle: Fiora, Udyr, Elise ADC: Jinx Support: Sona, Velkoz, Malzahar, Annie

Any more I can add?

Tl:dr- need kit bombers or duelist champions on each spot that can (at least almost) carry. Been having bad luck in ranked, bronze, where I go positive but someone feeds or something. Game one, got Ahri (yay my main mid), but someone demanded mid and refused to go support- ended up Ahri Support and never got fed enough to do things; Game two, played Riven and (nameless player) fed pretty hard and I never became relevant enough; Game three- super positive as sona, garen was as well. garen repeatedly shut me down.

And that is why I need help =). Thanks mates.