Suggestion for Yasuo Changes:
Goals are to give opponents more reasonable windows to play against/outplay Yasuo in Lane. Add skill expression back into windwall.
Change 1: Steel Tempest: 1- Revert so he can hold stacks for 10 seconds (makes sense with other change) 2- Increase Cooldown on early ranks: 8/7/6/5/4 (attack speed still reduces cooldown, still unaffected by cdr)
Result: Fewer opportunities to zone by holding tornado. Fewer ranged attacks. Fewer AA/Q combos. Fewer free knock up trades. MUCH larger windows for opponents to play around. These changes alone should make Yasuo's lane opponents feel less oppressed and better able to fight him.
Bonus: It also means that he is back to live values at level 9 assuming he maxes this skill first (he should). So we are pushing his power to later in the game. Hopefully after lane.
Change 2: Windwall 1- Fix the size of the wall, no longer grows with ranks (live rank 2 or 3) 2- Fire the wall from his auto attack range, not inside his model. 3- Have the duration scale from 1 to 2 seconds on rank (1/1.25/1.5/1.75/2)
Result: A more skill oriented version of windwall that is not as effective as a zoning tool. The fixed wall size means its never a huge burden to walk around if that is the best option, the spawn location makes it to where the Yasuo player needs to react a bit quicker and can't block things by throwing windwall the wrong direction, and the duration means it won't zone people even a little bit till much later into the game. And even then, its not 3.75 seconds.
These two changes in my opinion would remove a TON of the generic frustration of playing against Yasuo, greatly lessen his early level power, and leave room for RIOT to adequately balance him.
On a random side note:
I personally would like to see the power from stacking E damage moved elsewhere in his kit. The power there is hardly noticeable and the power budget feels wasted there. (its not strong, its insignificant, and the power could go somewhere else).
EDIT: I didn't leave any suggestions for balance buffs. RIOT will do what they want to make him strong enough. BUT now that Im typing, if his early game is still too strong, you could buff his late game and hit his early game again by making his crit damage multiplier scale down as follows:
-20/10/0% at levels 1/6/11.