This chapter will go over , this is where i got my information from. http://gameinfo.na.leagueoflegends.com/en/game-info/champions/yasuo/

Formerly a brilliant pupil at a renowned Ionian sword school, was the only student in a generation to master the legendary wind technique. Many believed he was destined to become a great hero. However, his fate was changed forever when Noxus invaded. was charged with guarding an Ionian Elder, but, foolishly believing his blade alone could make the difference, he left his post to join the fray. By the time he returned, the Elder had been slain.

Disgraced, willingly turned himself in, prepared to pay for his failure with his life. He was shocked, however, to find himself accused not just of dereliction, but of the murder itself. Though confused and racked with guilt, he knew the assassin would go unpunished if he did not act. raised his sword against the school and fought his way free, knowing his treason would turn all of Ionia against him. Left truly alone for the first time in his life, he set out to find the Elder's real killer.

spent the next several years wandering the land, seeking any clue that might lead him to the murderer. All the while, he was relentlessly hunted by his former allies, continually forced to fight or die. His mission drove him ever forward, until he was tracked down by the one foe he dreaded most - his own brother, Yone.

Bound by a common code of honor, the two warriors bowed and drew their swords. Silently they circled one another under the moonlight. When they finally charged forward, Yone was no match for ; with a single flash of steel he cut his brother down. dropped his weapon and rushed to Yone's side.

Overcome with emotion, he demanded to know how his own kin could think him guilty. Yone spoke: ''The Elder was killed by a wind technique. Who else could it be?'' Understanding swept over as he suddenly realized why he had been accused. He professed his innocence once more and begged his brother's forgiveness. Tears streamed down face as his brother passed in his arms.

buried Yone under the rising sun, but could take no time to mourn. Others would be after him before long. His brother's revelation had given newfound purpose; he now had the clue that would lead to the true killer. Swearing an oath, he gathered his belongings and, with one last look at Yone's grave, set out with the wind at his back.

At the end we find out that the killer was

Steel Tempest

Steel Tempest is a short range ability that on casts throws a lined "Skill Shot", this ability stacks. After two succesful Steel Tempests strikes meaning landing it on minions or enemy champions the last stack fires a tornado in a line and knocks enemies Airborne. This ability stacks with 100% Attack Damage. On hit Steel Tempest grants a stack of Gathering Storm, if the ability doesnt hit a champion within the 20 seconds the stacks will reset. Using your auto-attack just before the animation of your Steel Tempest you will cancel the animation of your auto-attack.

Wind Wall

This is still in progress

The first combo is called the Airblade, yasuo, can E-Q a target while being in range of his Knocked up champion and immediately press Last Breath after so the Q gets Transferred, which will grant him one stack of Steel Tempest. In Short, Q (The target) E-Q
(minion or champion) and R after.