Best Champions To One Trick!

Hello! I was just wondering what are some of the best champions to one trick if you want to go from Silver 2 to Platinum 5. I don't mind any role, apart from Support. I want to be able to climb as I feel like I could do better if I know my damage as I have average games and I never normally play the same champion for more than 3 games in a row. For example, champions which people could smurf on and climb to high ranks without having to much to worry about. Thank You.
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