@Riot, Chain CC
There needs to be diminished returns on chain CC. Chain CC completely removes counterplay 90% of the time. If you get hard CC'd, the next one within 5 seconds should last 50% and the third 25%. Any after that should not work at all. This would improve the game by leaps and bounds against the mega toxic team comps like Malphite, Kalista, Yasou, etc.
If a team can't win with 3 chains under those circumstances (which is still 175% CC!), they don't deserve to win at all.