PSA: If you think Leblanc is still strong.
Buy either abyssal or hexdrinker. I swear she is perfectly fine right now holy shit. The only way she can actually succeed is if she gets ahead in lane. You can actually give up a few cs against leblanc because she actually takes a lot to stay even in farm with most mids. She isn't a farming champion she is an assassin. She loses almost all her burst potential until lvl 16 when you complete double dorans negatron. Ask anyone above gold 1 she doesn't win unless she's significantly better than the enemy laner or the enemy laner is that bad.
You want a champion that is broken rn that goes mid? Vlad, Taliyah, Ao Shin, Karma are all insane rn. Even Cass, Syndra, and Kass are pretty strong but they still can be countered and easily interfered with in lane. (easily ganked)