I want to know which champion I should get if I want to be agressive and not have to play safe. I could attack a person and kill them easily in a 1v1 so high attack damage. I want a melee type champion. With the right items I can take on multiple people at once recklessly.
Definitely Kled. Kled is all about being aggressive.
Kled is, but he's overpowered at the moment.
Try out these champions. I would especially recommend the first four. These first four can all deal some major damage in a duel while also being able to take on multiple people fairly easily if in the right scenario. Pretty recklessly I might add.
You just described Kled. He is psychologically incapable of loosing unwise 1v3 tower dives.
gareeeen
Honestly, 
Get a kill in lane. Get another kill. Jungle comes to gank, get a double kill. Then 1 v 5 enemy team
