Going through all the PBE changes...

well when he's putting out 5 attacks a second and healing off of each one with gunblade and death dance, could kite you to hell and back with pd if he wanted, kills everything around you with runaans, can't be bursted without a fight because of death dance, gets more attack speed with just three aa's from rageblade and runaans, and deals some mixed damage from rageblade and gunblade. you're not gonna last long against him.

additionally, yasuo is terrifying. see this:

Assassin build: ++ + http://i.imgur.com/E05Yvrq.png + / http://i.imgur.com/4o9vxnK.png / https://i.imgur.com/2t6zav5.png + /// 225% crit damage, Tons of attack speed, always crits, can goes fest like sanic, heals from physical damage, makes armor useless in most cases, can survive most burst and can itemize to take down armored tanks, make slipperies bleed to death, outlast some life-stealers, clear waves, and does tons of damage without trinity-force.

Teamfight build: + + + http://i.imgur.com/E05Yvrq.png + / / https://i.imgur.com/2t6zav5.png + /// what can you do? nothing. he's coming for that booty unless you're pretty much boosted by the same items and have more movement speed.

this actually literally sums it up for the circle-jerkers, and they're right too: https://www.youtube.com/watch?v=o0u4M6vppCI as well as the joy of being able to pick him for those mains out there: https://youtu.be/HUMbDWhFHc8?t=29m

pretty spoopy possibilities there.

additionally, graves and kog'maw can now jungle if they really wanted to.