Could he perhaps have some damage back? At this point his mobility get's expensive quickly, his sticking power requires him to have 
for the mana and slow, and he has to build a LOT of mana to be able to function, so could we perhaps look at giving him a bit more damage now that he's not this void walking terror all over the map? Maybe put it on his E so its more situational if it still worries you.
Kingsgrave3 votesGive him more damage in the form of his W. Its a lot harder to use than Q and E and has a lot more risk involved, albeit not much more.
DustyElLion1 votes{quoted} Give him more damage in the form of his W. Its a lot harder to use than Q and E and has a lot more risk involved, albeit not much more.
This also seems fair. I see the pattern they want him to use, scooting in and out of fighters opportunistically, the problem I feel is that with the new gating on his R he can only do that so many times, with and without his sticking power or damage, it can be hard to have an impact.
Earl Eulrich1 votesyea, but it has to be dps rather than burst to allow for reaction from his opponents.
Ninpire2 votesPLEASE. I was playing as kassadin and I was 16 and 2 and I still wasn't able to one shot the CAITLYN. it's caitlyn... and she wasn't very fed, no ga. Other assassins can one shot squishies in some way. Or someone like akali who has her burst up every 4 seconds. His cooldowns are pretty long too so one rotation should do it but it doesnt.... gramted I had a roa but other than that I had a lich bane for more damage and zhonyas cause it gives quite a bit of ap as well. I don't like building my assassins as bruisers
HeyIin2 votesI myself feel that Kassadin is in a fairly good place where he's at now, he's not instant win, but at the same time he requires you to know how to play the game, pick your targets, and so on.
That being said, the most recent game I have played as Kassa' I had RoA, Frozen Heart, Zohnyas, sorc shoes, banshees, and a iceborn guantlet, I found this to be a perfect build for him, allowing him to use his ult to at the very least get in and get out after slapping the carry across the face. and if things got sticky zohnyas and just hope you have enough mana and your flash to get away. as seen here [This is a full gameplay so sorry if the time bothers you] https://www.youtube.com/watch?v=QKA3o_K0Y6g
I am not the best kassadin in the world, I'm only a bronze 1 player in general but I hope my input can help you see that he's in a good place, or at least one that lets you play him everywhere.
It Is I Emoto1 votesI kinda wish that Riot would focus him being a more mana focused champ like ryze. nerfing his base/ap ratios but giving also mana ratios on him would be neat, or turn him into a mana stacker, so he can actually do multiple jumps. nerfing his base mana and mana per level would balance him too. It would be quite intresting and might become a great late game threat like Nasus and Veigar.
Sybil Cut1 votesThis will never happen for the exact same reason that Ryze mana scaling is toxic and has caused several mana items to get nerfed.
(note: it's because most high mana items get/got you tanky as fuck)
DustyElLion1 votes{quoted} I kinda wish that Riot would focus him being a more mana focused champ like ryze. nerfing his base/ap ratios but giving also mana ratios on him would be neat, or turn him into a mana stacker, so he can actually do multiple jumps. nerfing his base mana and mana per level would balance him too. It would be quite intresting and might become a great late game threat like Nasus and Veigar.
We don't need another guy getting damage from tank items. It's a nightmare to balance as illustrated by Ryze.
It Is I Emoto1 votesHmm, maybe I guess? I always thought that ryze has his power from his passive that reduces the cooldowns of his abilities is his true power, so he can spam his abilities. They made kassadins ult scale on mana for damge for some reason and that's the only thing that's bothering me alot. To build mana just for his ult doing more damage is kind of pointless, while he lost his identity of being a assasin, and is more of a bruiser now.
I'd probably anyways prefer that he would get a mana stacking passive, because it would really help him :0
DustyElLion1 votes{quoted} Hmm, maybe I guess? I always thought that ryze has his power from his passive that reduces the cooldowns of his abilities is his true power, so he can spam his abilities. They made kassadins ult scale on mana for damge for some reason and that's the only thing that's bothering me alot. To build mana just for his ult doing more damage is kind of pointless, while he lost his identity of being a assasin, and is more of a bruiser now.
I'd probably anyways prefer that he would get a mana stacking passive, because it would really help him :0
Ryze has a lot of things going for him, but the big deal is that he can build tanky items like RoA and Frozen heart while still doing carry level damage. If you took his passive and put it on say, Brand, it'd be really strong but he still has to build glass cannon so its effectiveness is limited.
It Is I Emoto1 votesProbably finally remove his passive lmao I never understood his mana scalings but that kassadins ult need also those scalings that actually lack of damage I'd prefer to have it an AP scaling or something.. it doesn't need to stack on damage, but giving it a weird scaling, won't help anyways :0
DustyElLion1 votes{quoted} Probably finally remove his passive lmao I never understood his mana scalings but that kassadins ult need also those scalings that actually lack of damage I'd prefer to have it an AP scaling or something.. it doesn't need to stack on damage, but giving it a weird scaling, won't help anyways :0
Kassadin's ult scales on mana to keep him from build all the AP and being silly bursty, but still doing SOME damage. You have to stack mana on him to be able to cast your ult multiple times.
I'd say adding some damage to his W passive would be a good place, means he has to stay in the fight longer to do damage.
It Is I Emoto1 votesYeah, it's pretty much like that. But kassadin is an assasin, he's supposed to do alot of damage and have to return safely soon as possible. He's right now being a bruiser who's doing sustain damage, instead of burst damage, he can stick to his targets, but it takes sometimes a while
DustyElLion1 votes{quoted} Yeah, it's pretty much like that. But kassadin is an assasin, he's supposed to do alot of damage and have to return safely soon as possible. He's right now being a bruiser who's doing sustain damage, instead of burst damage, he can stick to his targets, but it takes sometimes a while
His ability to go and safely get out is what makes him problematic as a true blue assassin. The likes of Talon, Katarina, and even Akali don't have too many ways to get back out if they over-commit or misjudge where as Kassadin can rift walk in burst rift walk out. It's one of the same issues they had with LB, an assassin with a way in and a way out tends to be too safe. They wanted to keep Kassadin's nature as a highly mobile champion, but in order to do that they had to gate it, and rearrange his damage so he's more sustained and less burst, the problem is he's under tuned a bit right now.
Raja Chachki1 votes"Kass' ult" "scales" yeah those 2 don't go together, Kass' let lategame does like MAYBE 200 damage vs the 600 damage per ability in the rest of his kit. He sacrifices damage for utility in his ult.
BastionKross1 votesReal talk: Having a low CD flash built into your kit is damn powerful. You pay a lot for that, and it makes your other abilities considerably worse. 
has the same issue.
Riot is going to be very hesitant to put any more buffs into Kass, lest he creep back up to perma-ban status with the slightest of nudges. I'm not saying he shouldn't be buffed, but I am saying that any buffs could easily throw him back over the cliff to being overpowered, and no one wants to go back to having five bans again.
Chaotic Reks1 votesI just build him AD...
Hayaishi1 votesNo, Kassadin should NEVER be buffed as long he has his ultimate.