League of Legends Weekly Free Champion Rotation - Dot Esports
Patch 10.7 notes
League of Legends Free Champion Rotation (Patch 13.24) - Mobalytics
League of Legends free champion rotation (September 27): What are the free champions this week - Dexerto
Free Champion Rotation: June 1st
There should be "free operator rotation" that changes every week. So every week there are some free operators that you can use in games excluding ranked. : r/Rainbow6
League of Legends Free Champion Rotation (Patch 13.24) - Mobalytics
MultiVersus free character rotation will change every two weeks | Shacknews