recommend a fun champion

desperately looking for a champion to one trick that won't get boring or frustrating after three games, no bot lanes please (supports are okay). I've tried on separate accounts but they're all so binary and playing them from behind is the worst (and I'm always playing them from behind) since you have to wait so long just to be able to right click someone. I want something enjoyable and useful from ahead and behind I guess. I just want to feel like I'm having fun playing League since I have no other games to play.
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