I literally wanna fucking cry in anger LOL I've been trying for 3 god damn days and I just can't win. Every time we do well, 3rd kayn comes and one shots all our fucking team. Last time I had him on 2000 hp and my whole team was alive and then we all got one shot in 1 sec, dont even know from what.
Get Ogre Here2 votesAfter a certain amount of time he gets angry and just one shots everyone, you have to do it before that time. The trick is: When you get to the Kayn fight (have 4 Yasuos and one Malphite) and whenever a bunch of monsters spawn, have the Malphite ult a bunch of them into a wall and have every Yasuo spam R and get a ton of tornadoes then dash on Kayn and that'll do a lot of damage. You can do this kind of thing in the earlier levels too when the crabs spawn. (Make sure Yasuos have Tempest and Augment where he can recast his ult, make sure Malphite has the one where he can ult things till he hits terrain and the one where his W dashes him towards enemies.)
giannishannibal2 voteswell yasuo takes the aug summoning tornado with his ult and the one that the tornado returns to him stronger, build bork,phandom or statick, IE, death dance and berserker or ninja tabi jinx takes the ult aug that makes it like corki W and the one that stores ult charges and can cast it multiple times,build first black cleaver and cdr boots then liandry then the spear of shojin , maplh take the ult aug that make is dash with his ult and the one that increases his E radius and look like a big karma R-Q, get thornail,liandty,frozen gauntlet,ninja tabi,roa or abysal mask, ziggs and sona arent really good with 2 aug in my opinion The stategy is malph ult kayne with as many monsters and e , yasuo ult that mass of monsters and kayne, and summon like 50 tornados that come back and hit like a truck, and jinx spamms her 3 ult charges in that mass of monsters and kayne, You need to run away from kayne when he summon orbs then call them back cause that his 10 sec ulta-high-aoe-burst move and u cant outdamage him or kill him,you only die and waste revives also when he ults dont be near with each other . then kill kog maw first then the velkoz , the scarnner , then the melee first or try to group them somehow so maplh can ult as many together with kayne and yasup ult that and jinx ult thrice toward that. Thats the strategy, now the rest is up to luck what kind monster spawn , if lava pits or moving electical storms or lasers are summoned, and how good are you and teamates are in kiting.
ShadWooo2 votesI was posting short guides/tips&tricks on EUNE boards, did you read them?
Just yesterday I beated 2 augments with 2jinx 2yasuo 1malphite team - https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/2049267128/211753741
Today I beated 2 augments with team of 5 jinxes. Game 1 4AP 1AD - https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/2049603279/211753741?tab=overview Game 2 3AP 2AD - https://matchhistory.eune.leagueoflegends.com/en/#match-details/EUN1/2049630419/211753741?tab=overview
You should read out my guides:
https://boards.eune.leagueoflegends.com/en/c/champions-gameplay-en/qdwru2Zl-odyssey-so-you-say-sona-has-no-damage-sona-useless - what augments and what to build for Sona
https://boards.eune.leagueoflegends.com/en/c/champions-gameplay-en/aIEEqMpJ-odyssey-general-tips-what-to-build-how-to-beat-kayn - what to build on Yasuo and tips for beating Kayn
I have highest cs and highest damage on Kayn almost every single game and thats no matter what I play just because I can dodge very well and stay alive and damage Kayn whenever he is vulnerable. Kayn especially is just DPS run. There is a time limit so it is not possible to solo (or so far I wasn't able to do it], everyone must do damage to him. If you get players who can't do at least 10k in his 3 iterations then thats bad. Also everyone should build BOTRK or/plus Rageblade if possible (though not needed on AP jinx, I still do more dmg with rockets than autoattackers). As these two items greatly increase dmg on Kayn due to his high HP.
EDIT: if you want to try 5 Jinx strategy then, augments are comet+arsenal for AP jinx and eager+antsy for AD jinx, if you got more than 1 AD jinx then eager should be replaced with comet/plan:Z/or anything you like. There is no need to have eager twice.
Build for AP jinx: 
and 
or
depends on gold.
Build for AD jinx: 
+ whatever... really
EDIT2: the reason you get oneshoted is that you ran into time limit. I also didn't notice this earlier, but if it takes too long for your team to kill him he creates beam towards every living player which will drain hitpoints and all his abilities will oneshot. You just have to kil him fast.
DemainaNyx1 votesPeople have to build to DPS Kayn, not just kill mobs. Nothing more frustrating than watching your full AP Ziggs use their ult on the Kayn instead of the 15000 mobs around him and yet still doing no damage to him...
For example, I play a lot of Jinx with Arsenal and Comet. Then I build Deaths Dance, Black Cleaver, Bork, and Guinsoo. DD and BC make your ults really strong, shreds defenses, lets you heal off them, and reduces the cooldown to about 10 seconds. Bork and Guinsoo is so you can DPS down Kayn, since probably no one else on your team built to do that. You can also do Liandry for more ability damage, but I'd rather have damage in between ult charges from Guinsoo and Bork.
