I made a tool that allows you to find the mathematically correct build for any champion (also includes a Practice Tool simulation where you can attack any champ instead of a dummy) :
League of Legends Builds by Genetic Algorithm - LoLSolved
league of legend build calculator online – Long Johns Surface Academy
Planner tools are hard to find :: League of Legends (LoL) Forum on MOBAFire
League of Legends Builds by Genetic Algorithm - LoLSolved
Surrender at 20: Mokulu's Champion Build Simulator
League of Legends Builds by Genetic Algorithm - LoLSolved
64 League of Legends Tools + Sites You Should Know About [Season 11 Update] : r/leagueoflegends
امام الجسر جمعيه champion gg cassiopeia - muradesignco.com
GitHub - jc4p/lol-champ-stats: Python scripts to generate League of Legends item sets from champion.gg data
League of Legends Damage Calculator for all Champs : r/leagueoflegends
GitHub - SuperJugy/lolbuilds: An application to manage your League of Legends Builds.
How to Find the Best Builds in League of Legends - Mobalytics
League of Legends Builds by Genetic Algorithm - LoLSolved
League of Legends Builds by Genetic Algorithm - LoLSolved