This yasuo build is made to give an easy early game to counter picks like renekton, darius, riven, and xin zhao. It gives yasuo isnane survivability in fights and making him a damage absorbing juggernaut. Yasuo's base damage output and low cool downs make his DPS (damage per second) significant and higher than most other tanks. This is also the perfect way to say to any assassin "**** you" since they will not be able to duel you at any time in the game.

Yasuo is primarily suppose to be a fighter. With this specific play style you are needed to trade with your laner as much as possible and you are free to push him when ever you would like. Most of the time Yasuo gets ganked early on in the 3-6 minutes in and gets easily duelled by both the top laner and the jungler due to his squishyness. This way of itemising and defensive stats yasuo gains makes him much less vulnerable to ganks. Your trades should be a 4-5 auto attack fight, to make use of Grasp Of The Undying as effective as possible.

Sample Fight: Dash in on a minion next to enemy laner, auto attack them and use q to auto reset, dash on them if not close to their tower, and auto one or 2 more times. Finally back off until you are able to do the same exact scenario.

Your tanky stats and decent damage early to mid game make you one of the strongest fighters but you will eventualy fall off late game and others will out scale you.
Because of this you will need to put as much lane pressure and enemy jungle attention to your lane as possible. This will prevent the enemy jungler being as efficient to other lanes. The point of this build is to have a huge early game advantage over every fighter and to end the game early around the 22-30 min range.

With this build yasuo is a perfect tank/dps fighter exceeding at his primary role putting out damage and soaking it up. He gets granted high 1v1 duel potential and great teamfight engages but does not go any where close to original crit yasuo in damage and dueling potential.