Yasuo doubles his total critical strike chancee from all other sources, but his critical strikes deal reduced damage.
Yasuo also gains flow for moving around on the map. At 100 stacks of flow, and upon taking damage from enemy units, Yasuo consumes all the flow stacks to shield himself.
Steel Tempest
Q
Cooldown: 4 seconds ∙ Cost: 0 mana ∙ Range: 475
Thrusts his sword in the target direction, dealing physical damage to enemies hit. This ability can critically strike. If this ability hits an enemy, Yasuo gains a Gathering Storm stack for 6 seconds. On gaining two stacks of Gathering Storm, this ability consumes all the stack to unleash a whirlwind that travels in the target direction, which deals the same damage and knocks up all enemies hit for a second.
Creates a wall of wind in the target direction which slowly drifts forward and blocks all hostile non-turret projectiles that attempt to pass through it.
Dashes a fixed distance toward the target enemy unit, dealing magic damage to them. Yasuo cannot dash to the same target more than once every few seconds.
Blinks to a knocked up enemy and holds them airborne while generating maximum flow and dealing physical damage. For the next 15 seconds, Yasuo's critical strikes gain 50% bonus armor penetration.
Quick tips to play Yasuo
Weave through the minion wave with your E while always leaving at least 1 minion untouched so you can get out after trading.
Wait for the optimal time to use your R. Don’t just engage whenever anyone gets knocked up as you might be going in 1v5.
Refrain from using your Windwall W unless you need to use it. You never know when it will come in handy to protect you from incoming ganks or global Rs.