League champs by difficulty Tier List (Community Rankings) - TierMaker
Ranking ALL Toplaners based on their difficulty (In-Depth Tier List) - YouTube
Vakin on Twitter: "Official Sigma Grindset Champion Tier list (character/lore only, no in game/players) Racist in lore = automatic D tier https://t.co/Y5ovQdGvqh" / Twitter
Veigarv2 on Twitter: "My tierlist on difficult champions in league of legends video game. https://t.co/WszR5VypUB" / Twitter
The Ultimate Mobalytics Guide - League of Legends - Mobalytics
Ranking Every League of Legends Champion based on how hard they are - YouTube