For Riot: Elixir of Iron should reduce knock-ups
There were several posts about the sudden increase of knock-ups over standard stuns on new champions or complaining about displacement cc in general.
Over last year riot was trying to explain their philosophy on many aspects of the game. I especially liked the part about counterplay and strategic options to buy in game. Displacement cc you can counter only by not getting hit and as we all know that can be difficult even when playing your best like Unstoppable Force. Some abilities like Condemn or Buster Shot cant be avoided at all (unless you're fizz).
Making
reduce duration or length of displacement cc would bring new interesting option to players when facing some devastating wombo-combo. It could even make sense since you are bigger or have some iron in you.