Rell

Dream come true if the player knows how to pilot her correctly. With both KO on W and R this is amazing.

Nautilus

Good frontline with knock up (single target though) Except if ulting into a crowd.

Bard

Q stun is good. And he can get in you in lane a bit quicker. There are many better options out there. Bard mainly plays with roams. Yasuo would like his support to stay in lane and kill opponents or at least force them back instead of going on magical journeys

Yuumi

No help. No frontline. No cc. is very sub optimal. There are many other supports yasuo would rather have

Leona

Nautilus at home: Can land a lot of good CC but you have to be the one to knock up if you want to actiavate your R. Has a better lvl 2 than any other tank support (except maybe maokai with W Q)

Camille

Good in the early game and can knock up a target on her E, but you have to be quick to press R. She has a lot of damage but not much that can help you survive in a sticky situation. She is a rare ally to have, but good when in good hands

Quinn

makes up for the late game that you lack. can knock up with E, but you have to be quick to press R She has a lot of damage but not much that can help you survive in a sticky situation. Unlike Camile, quinn will not go buy tank (except perhaps deathmans plate) meaning you will have to build more defensive She is a rare ally to have, but good when in good hands.

Braum

Can apply passive that has good synergy with HoB and it is also procked by your Q (as it counts as on-hit). His R is knock up with yours and any poking lane is lost due to both of you having E and W-wall respectively to block out any damage. FIGHT WITH BRAUM.

Janna

Enchanter, with MS buff and a knock up. Quite good.

Galio

He can knock up multiple targets. He can help clear the wave even faster for resets. We do not like that we have to go in Before the knock up comes. yasuo might die before galio will come with his hero entrance. yasuo will like galio to play for him rather than other places on the map.

Karma

can boost you up and potentially root enemies. In reality she will likely Q the wave and cut of your escape minions or stand behind and poke as this is where she thrives.

Neeko

Has cc and giant knock up. Lacks front line tankiness

Poppy

Has more security than Galio but trades it with lack of knock up. She can with her Ulty but it has to be timed shortly.

Thresh

Can disengage W/o minions. Can knock up with his E and can get pics with his Hook.

Taric

His E with your mobility is crazy good. Also he can make some impossible ulty dives possible with the invulnerability of his ult.

Tahm Kench

Can be good if he lands some good W's

Vel'Koz

One of the better mages. depending on the ELO he will most likely kill/damage the minions in your wave

Zyra

has root and knock up. Not to mention the extra plant damage the will take when you ult the,

Xerath

Will shove your wave when trying to poke the enemies. Has no Knock up and no frontline. Worse version of vel koz

Renata Glasc

NO knock ups, no front line, but she can save you from death which is nice.

Rakan

He rallies the enmies up and knocks them up. Yas likes that

Milio

Has a knock up, but the duration is short. MS form his W is nice but you don't really benefit from the extra range.

Gragas

Has good knock up and ap DMG Though the player need to be a good pilot on the champ to make things run smoothly. He can also knock enemies out of your dmg.

Pyke

A better pantheon, But his roaming is annoying to play with if he is piloted suboprimal.

Pantheon

All in combo. Less cc more dmg version of leona.

Nami

Knock up, MS , AP dmg, sustain. She has all the things Yas wants.

Lulu

Like jana, but your AA also deals extra dmg.

Lux

I just have a vendetta against Lux players. They will likely try to use E on the enemies and damaging the minions completely mess up your wave.

Blitzcrank

Q is good for early game. Plus point and click knock up, is worse in the late game than thresh would be.

Alistar

AoE knock up. Is tanky. Can heal you

Soraka

Seraphine

NIce sustain. Worse version of nami

Sona

MS is nice and so is the sustain. Worse version of nami

Morgana

Better version of Lux, but will still likely push your waves with her w

Sejuani

Viable like Maokai