Surrender at 20: Free Champion Rotation, Week of June 6th
Playing Free Rotation Champs in Ranked : r/leagueoflegends
MOBAFire on Twitter: "This week's free champion rotation is Ashe, Brand, Dr. Mundo, Ekko, Fizz, Irelia, Leona, Lulu, Twitch, and Warwick. http://t.co/JqD7PjF7Cf" / Twitter
GitHub - haakonaareskjold/FreeChampionRotations: A simple website/app displaying the current free weekly champion rotation for League of Legends, automatically fetches new rotations and patches. Requires RIOT GAMES API KEY
League of Legends Free Champions Rotation This Week (September 27) | Turtle Beach Blog