I don't play a lot of Ranked myself, but it's going to be a huge problem like with any Champion Release... Please disable Aphelios from Ranked for the first few weeks, especially because he's such a hard to play Champion. I've experienced it myself and also heard about it so many times, people who play the new Champion for the first time or are trying to PRACTICE the new Champion in Ranked are ruining games. Of course you can ban Aphelios even if he's declared, but this will most likely end up in either 1) Dodging 2) Flaming 3) Trolling/AFK. Since the League Community is becoming more toxic overall, disabling Aphelios in Ranked for the first few weeks will definitely prevent toxicity, frustration and unneeded Ranked losses.