Yasuo

Sorry i don't know if this topic is evermade but if somebody haves a tutorial about how to use Yasuo what to lvl up first like QWER, and the builds

look for a guide
and look some plays on lcs i bet he will be played today

look on pages like mobafire for a guide.

yep, just google mobafire yasuo

or look at probuilds.net

ask the experts section, leute empfehlen mobafire
herrlich

wtf Mobafire? xd

[Only registered and activated users can see links. Click Here To Register...] and [Only registered and activated users can see links. Click Here To Register...] are way better

Max R - Q - E - W

Build: Statikk Shiv - Infinity Edge - Botrk/LW - LW/Botrk - Def-Item
You can replace Botrk for BT also and you mostly buy a vampiric scepter before or after the statikk.
As boots I recommend mercs against teams which have cc, tabi's against huge amounts of physical damage and beserker grave's for others.

If u Play against Ap Carrys with good Poke(like Syndra) i would rush hexdrinker first and then statikk Shiv or rush straight after statikk shiv hexdrinker.
Hexdrinker is to op for ad Champs against ap's in mid

R > Q > E > W

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Start with Shield/Blade, depending on the Matchup (on Range or AA-based Champions I prefer Shield)

Then go for an Avarice Blade and rush a Statikk Shiv

Next back take a Vampiric Scepter

Then attackspeed boots and next aim for an Infinity Edge

After this you usually buy a Last Whisper

_

In lane, and especially in the early game you should try to hit 4 Minions with your E before using it on the enemy. Because this way you maximize your E damage.

Use your Q to harrass, it's insane

Don't waste your wall for every single shit, its cooldown is quite high and you will need it for dangerous ganks like Elise's E or something