At Low Elo gimmiks like this can work.
I had a friend who was stupidly good on Zed. I'd take Leona or Braum, he'd grab Zed and wreck face.
But again, it's mainly because a Low Elo Support has no clue what to do about a Zed, and the ADC isn't good enough at positioning to keep the Shadow from softening him up before we Dive.
Also makes Turret Diving a breeze. My Leona or Braum tank the shots and land some CC, while Zed zips in after 6, marks and deletes, then hops out to his Shadow in safety.
High Level Play they start to know how to stop such cheese. But I'll tell you what, was sure fun while it lasted. LMAO!
Another good one was Old Quinn... you'd take Quinn ADC and Teemo Support and just Deny CS all lane phase. So even if your Quinn is doing poorly on CS, she'll still me miles ahead of the Enemy ADC who is going to now be garbage all game. By the time Lane Phase ended one game, our Quinn only had 52 CS... but their Caitlyn only had 12. She was a walking Free Kill at that point. It was their fault, they took a Yi Jungle who also lives and dies off Auto Attacks, so he'd come Gank to help and we'd just Blind and Kill him too.