After the assassin update,

[{quoted}](name=Tidal Tyrant,realm=EUW,application-id=3ErqAdtq,discussion-id=GQ0NA2NH,comment-id=0000,timestamp=2016-08-09T13:39:11.043+0000)

Propably Vanguards (Offensive tanks such as Sion and Malphite) or Diving Fighters (Noc, Irelia, Jarvan, Wukong etc.)

Assassins, Diving Fighters and Vanguards were the 3 options for this year's class update, before they decided to roll with assassins.

Hopefully either before or around the time of Assassin update, the Yasuo fix up to shut down his tank play building and with it, part of his power as a mid laner. Since there is no way they can't nerf down his kit to have an impact on mid lane if they are planning on killing those tank builds by shoving his base damage values more to his scaling or some other measures.

Hell it might even resolve the yasuo mid lane dominance a bit i they actually do proper tweaks like reducing his windwall and flow shield, considering indefinite shields till hit that are easily refilled thru a 'mechanic' then a cool down of not being hit at all, tends to seem to be stronger by miles in the same sense(ESPECIALLY IN EARLY GAME WHEN IT HAS A LEVELING SCALE) a huge bonus move speed while out of combat, tends to be lack luster when a indefinite almost constant move speed bonus that also can be 'indefinitely sustained' shows up as being extremely impactful in fights or laning when you have TP down or do not have it at all.

[slayer-jinx-unamused]

And if you say something that Yasuo ain't an Assassin he is a Fighter/Assassin, just has a few too many utilities that makes champions like Zed seem trashie if you compared what they have and wonder why he hasnt got some kind of tweaks like removing some of the utility and just up his stats some'what so he fits more as a fighter then some Poke and bring death Assassin.