Yasuo And The Whole 100% Crit Lie
FIRSTLY before anyone brings up the whole 2 items = 100% crit argument, can I point out that that takes 3400 gold, and means he has about lets be nice 90 AD, so with crit this is 180 but then lets apply the 90% effect reduction from passive so 162 damaeg, then there's the 25% reduction for Q sot that does 157.5 (plus 20 base) so 175.5 damage damage, now if we look for 3400 gold you could buy Youmuu's Ghostblade or for 100 gold more deaths dance
YM = 65AD, 10 CDR, 20 Armour Pen, 20% MS and 40% AS DD = 75 AD, 10 cdr, 15% heal, 15% damage reduction thing
So for the same or similar gold you could buy 65 or 75 AD which gives you extra stats aswell and for your AA you would deal 155 damaeg (not reduction form crit) and Q does 175 on Q, this is from YM.
So really for the amount of crit he is buying he is getting less useful AD and then misses out of other more useful stats like CDR (i know not good on him but example), armour pen increasing YM damage even more, then 20% MS and 40% AS active.
So honestly the 100% from 2 items which would require full zeal based item and and IE which is 2600 + 3600 = 6200 gold, this then gives you the same formula as before except + 65 damaeg so lets say 150 AD then lets do the calculation again
AA = 225% crit now (cause math) so 301 damaeg (151 from crit) Q = 187.5% so 301.25 - 381.25 (depending on Q rank)
When compared to buying 2 other items worth 6200 gold on other items you could at best get 130-150 AD
In total and AD of 220 - 240 that is 60 less damaeg than a full crit Yasuo, BUT and this is a big BUT most other champions will have better abilities that will deal more damage than Yasuo will example Talon (Q) , Irelia (Q) have an extra 50 and 40 base state on the receptively making the difference really 40-20 damage/
So honestly when you say that he can get 100% crit so easily, remember that the actual damaeg difference from building crit to build AD is about ~50 damaeg which when you compare that Yasuo has so many weak damaeg abilities in his kit W does no damage, E does max 225 (unless you build AP but who does that on Yasuo?)
So really his entire kit is mainly utility at that point, so yeah, before you jump on the whole broken crit think about this.