I now realized old infinity edge gives no bonus crit chance, but gives double crit chance....

As an item alone, doesn't that totally negate the purpose? At least they just gave it 25% crit but no double crit chance... If that was the case, Yas's full build would just be an infinity edge. 25% x 2 (broken infinity edge speculation) = 50% 50% x 2 (yasuo passive) = 100% crit chance.

Thank lord that doesn't exist