Appreciate the reply. I'm no statistician, but I and I think most people would read your comment as, "If you list all individual champion matchups and sort by winrate delta the ones at the top would be ~5%.".
If you're telling me that of Sylas' 8-10% delta only 5% can be explained solely by the matchup, I guess I can believe that.
No I’m just taking 5% as a reasonable measurement of a hard counter. Sylas malphite is the hardest counter in the game. If the single highest matchup delta is 8%, then just saying anything north of 5 is a hard counter holds water in my book.
That’s what I’m saying. The average actual hard counter that’s worth considering crippling a comp for is one that provides +5% win rate. The question is then how much is hurts your overall comp.