Ok so let me set this straight, you want: 3 protected CCs, a slow cleanse, another iframe, another dash, an evasion buff, more damage, less stamina usage, grab ignore, A PROTECTED GRAB, and you don't think that'd be a bit much? lol.

and honestly, it still won't be meta I promise you. 

classes like awakening drak get all of this except a protected grab and get massive heals on skills, protected cc's, crazy mobility with no stam issues, can dash further, can fly, and has way better dmg/tanky ratios than awk lahn.

classes like succ zerker get multiple grabs, easy slows to apply to others, crazy 100% AND 200%, no stam issues, insane mobility

musa can unlimited dash, has crazy dmg IN EVASION, can recover stam, get in and out in no time. 

succ ninja gets block jump, crazy iframes, protected cc's, way quicker movement, way better dmg IN EVASION too. 

awakening nova can zoom in, it's ebuff gives it unlimited SA, it bursts better than lahn, it has a further grab. 

In the range meta, it honestly really does need all this and still it won't compete sadly. Awk lahn is just so behind compared to all the buffs these other classes have gotten in the past year. It sounds like a lot, but this class is so down bad you don't even realize. You have to be able to get in and get out, but this class gets in has to work so hard for 1 kill, if you get that kill you have no stam to get out OR if you dive in and someone joins into the fight, you just have to try your best to get out and you just end up stam gassed, it's rough. AND AGAIN the combos it does are literally so unprotected, that getting the dmg out is so risky. it's sad like really really sad. 

As a past Lahn Awak main who played Lahn for 1500 hrs (then deleted her and remade), The only problem that Lahn has is stamina. Yep, nothing else.. just few stamina reductions on skills will improve her PVP & PVE by 60% (capping).... i mean, she will be much much MUCH better. She scales poorly with DR & Evasion and has accuracy issue, to fix that, all she needs is Passive +20DP buff or +10% evasion like sorc, striker & Mystic has. For accuracy, a skill with +15% accuracy buff is all she needs, that it...

Stamina is bad I'd say yeah.

Tbh though I'd rather be able to fly more, that's the whole reason why I play lahn, cause of the flying.

Your Asking for a little Bit too much But the Class is in a very Bad spot For PVP and PVE ,
PVP in large scale is bad such as.  very weak class for that and you need to E-Buff to Fight multiple generally. The Flight is Very Bad Slow Incline Compared to Succession and very slow short Flight and Height is Not Much unless you do pre awake to Awake Trick for more height so you can Take Melee Damage Mid flight if you dont have the Height. However you should Not need to Go to pre awakeing then switch to awakening Mid Flight for more Height should be that Height to begin with. it needs a Quicker Longer Flight. 
Does Not need them SA's as bad as you think. If anything Eradication Should be a FG into SA and Do more Damage And for reference you can Get FG on furor as a Core skill.
What should be done
Bloody Stride CD reduction And Flow: Mangler connected to 3 skills but 10 sec cd needs reduction 

Stamina Recovery on Deadly dance and Fatal Attraction 
Damage Buff for PVP Furor , Bridled , Flow Mangler , Eradication ( Slow Skill Low Dmg)  , 
Bridled Despair 100% needs its Build up cast time Reduced sitting duck for solid sec before doing damage
PVE Needs a Buff the Last PVE buffs were a Joke Blood Moon twist doubled but double nothing is nothing. and self Buff skill and earthly Pain no AOE and damage still Low.
Reference Before cry about Dmg buff for these skills did not Say Amount however some need big increase some dont need a large increase.
PVE Dmg Buff , Furor  , Deadly Dance , Bleeding Hearts , binding Chains , tailspin and Flow:Vice
Overall Love the Class But Like he Said its in an Awful position. May Agree May not Agree but your Opinion as i have mine.

Gonna just go over everything you would change for fun as I love Lahn but hate the state of her right now:

 SA on furor = this is a nerf btw...

SA on deadly dance = would be nice as the fg is irrelevant if you move backwards but is completely broken if that would happen

SA on mangler = irrelevant, placebo just don't mangler and fg would work better as the skill type

stam lock removed from deadly dance = yes this is actually a must, please

Q buff cleansing slows = wtf? This is never gonna happen, stop dreaming

FG on blood moon twist = not a bad idea, not to sure if it will make it to strong but right now the skill is useless, more so since you can V knockdown, not sure how it would impact it though could be to strong.

Bridled Despair could last 1-2 seconds longer maybe and even Taunting Death could last longer and go further = I like bridled i just would want it to be more damage or larger radius, the taunting death change you suggest is the same as sitting in eyes of blood so just placebo, go next

iframe/invisibility on binding chains = you're out of your mind with this one but instead of jumping as a flow it should just drop the weapon down

maybe a 3rd dash = nah just less cd to make her less of a stand still and waiting for someone to enter a kill zone type of class

evasion buff on phantom dance = idk why you're looking for evasion buffs her damage is more of an issue than her survivability, if you've been in a 1v4 or 1v5 you know that you have a chance to get away so you don't need survivability (then again look at succession...)

higher dmg on a few skills (bridled despair, deadly dance, furor) = agreed to bridle, dd is fine and furor is fine

reduce stam consumption on other skills = this one for sure expecially in today's times but more looking for movement stam regen

Ignore grapple resist passive = nah just revert the change making it a cone again instead of a straight line, I think no class should have ignore grab resist expecially zerkers since they can hold you in V but that's a different topic, think more balancing for all and not becoming the next drakania or meta class

SA grab becasue I swear to you that every time I grab someone I get cc'd instantly even after success and going straight into an SA ability = skill issue or desync... you can do a protected iframe cc securing combo. This more a you problem if you have this on lahn, and reverting grab to cone would improve against the desync part happening 

TBH even with all these changes I don't believe this class makes it to meta which is crazy to me. = the changes you suggested are over the top, again aim to make it fair for your class and others not on par with meta classes that should be nerfed.

However, at the end of the day I just would like to see some love for this class because it really is down bad. = 100% agreed to this, I love lahn, I just hate the state of her.

tldr: we all agree she is one of the worst classes for large scale fights and she needs her stamina fixed as well as a bit more beyond that, and for the pve enjoyers out there this class is useless and this should be fixed, but it's not the only useless pve class and they should all be fixed

Side note: I beg, please no more nonsense "buffs" on skills that she doesn't use to deal damage like flailing blades or blood moon twist ... those patches bring my hopes up until i just read some nonsense change. ( her last few patches were irrelevant completely and called "buffs xD").

For me the biggest issue of awk is stamina, regen in dd was fine.

The grab is kinda buggy sometimes having it back as a cone would help a bit.

Unfortunately they already "looked over" awk lahn and it seems that it's only problem was PVE dmg ...

Not like a combo class that has most of it's combo unprotected has a design issue, we just needed PVE adjustments :)

Going to respond to this. 

1) SA on furor isn't a nerf because you can still core fg it and it literally is a straight up buff as it has no protection right now 

2) SA on deadly dance is a bit op but allows you to fight classes like succ ninja that go through you and allows you to not just get instantly cc'd by say an awk maegu that just presses f. Again the fg is a core but the protection on this key skill is so needed.

3) Mangler is a great great great skill for combos in which you need to KD and flow out of skills with so I have no idea where you're coming from saying that this is a bad skill. I'm assuming you've had less than 1k hours on this class for this. 

4) fg on blood moon twist makes a lot of sense as classes like maegu can shift q quicker, further, and above terrain. This is half the distance, has a load up, and can't go above terrain. This skill isn't useless and saying so again tells me you don't have enough hours on the class. 

5) iframe on binding chains maybe puts this class in the level of iframes of a sorc for example although this may be op, I would say even a fg on this skill would be nice or sa. Any protection is good. 

6) evasion buff makes sense as it allows you to build evasion without sacrificing so much damage which this class already lacks 

7) dd doesn't have a lot of damage I'd urge you to test this properly 

8) ignore grapple resist, resist is ridiculous in this game and the fact that other classes get ignore resist for free and this doesn't isn't fair regardless. If your win con is to resist a grab that doesn't actually take skill and so ignore resist is a good counter to resist so not having this on the class is like a huh moment. If classes like zerker run an adamantine, new hooms, and a sturdiness crystal they're already so tanky and will resist something that you have (whether it be a kd, a stiff, or a grab). If you run ignore grapple crystals they'll resist your kd, if you do a mix of both you end up losing dmg cuz you sacrifice dmg crystals making them way harder to kill. Again this is something that would allow the class to keep up with others. 

9) the cone was broken and it should take skill to hit grabs still so I disagree with bringing the cone back. My problem isn't when hitting grabs, it's when on success I do hit the grab, I still get cc'd which shouldn't be a thing because I successfully hit the grab. This is for 1vx situations. So if I grab say a striker, a maegu can shift q me while I'm grabbing and then I'm just knocked. That's silly as other classes stay protected on success. 

10) again, blood moon twist is a great skill and you need to learn the class better.

-Satire/Order66