yasuo pass gains an additional 10% +5%per lv critical strike chance from all sources, basic atks and steel tempest(q) deal 82% +1% per lv when critically striking.
keep in mind that yasuo is a manaless champ so instead of potentially blocking infinite dmg each 50 section of the wall blocks dmg from 400/600/800/1000/1200 decaying to 150/225/300/375/450, and projectiles that have return do return instead of being destroyed upon collision w/ wall, and block 1 bounce of bounce abilities(cause height which factors into range to see if they can bonce again )
what also needs happen is a adjustment to crit dmg
this idea was proposed to me on one of my other posts, I don't know if this has been thought of as a possible option to reel in adc's from being classified as op by a lot of the community.
instead of X2 dmg when crit, this person proposed 1.4, I will propose 1.5(cause infin edge +.5 crit dmg), this then brings me to the possible idea of have excess crit chance increase the crit dmg bonus from infin edge. another option is excess crit chance increases crit dmg but infin edge increases it even more(make it feel like a truly infin edge), I'm guessing by either by X1.5 or X2