A few questions about the most optimal/efficient ADC build : r/ARAM
Mathematically Correct Tristana Build in URF (Strongest champion, for real) Runes: PTA, Triumph, Tenacity, Coup - Resolve: Second Wind, Revitalize. This goes full damage and tanky at the same time) : r/TristanaMains
Dr. Mundo ARAM Build - LoLalytics Dr. Mundo ARAM Build, Runes & Counters Guide
Caitlyn ARAM build [+ Tips] | League of Legends Guide - Basically Average