Currently he stands no chance against a Vayne with LW, Bortk. I had 500 armour and Thornmail at 23 minutes and she 1 v 1'd me without taking any damage basically. Rammus should much more of a threat to AD Carries and he simply isn't. His Q scales on 100% AP and his Ult scales on 30% AP, Do to him what you did to skarner and remove his AP ratios for something that he normally build in his KIT.
PePsiLemoNN4 votesIt's not him being weak , it's vayne being too strong
Crveni Malboro1 votesbro.. u cant talk shit about a champion u never played and mained in high elo..
Renascent3 votesThere's a couple of problems with this post.
Vayne is a dueling champ. She's supposed to be the one excelling at 1v1's.
Rammus is a tank. As a tank, you're supposed to lock down priority targets for your team's carries to kill.
If you're asking for Rammus to be able to 1v1 a dueling champ like Vayne, then he'd get even more thread complaints than Vayne gets right now.
Design points aside, you should know that Rammus' damage doesn't ALL come from return damage. He gets a bunch of AD from his passive and excellent base dps from his ulti. If Vayne stays out of those two sources of Rammus' damage, then it's no wonder you lost to her so easily. Get a Rylai's if you want her to stop kiting you so hard; It's basically Randuin's before it got it's slow-on-enemy-basic passive removed.
Diananmen Square4 votesBut Rammus should be able to 1v1 ADC's because of the damage he reflects, why is it that Vayne can destroy Rammus but other ADC's can at most get him to half HP?
Zantumall4 votesFirstly, Rammus shouldn't necessarily be able to 1v1 ADCs at any stage of the game just because he has one mechanic that counters them. If Rammus is running around solo killing people while still building full tank that's a problem.
Secondly, Vayne gets to 1v1 Rammus because a large portion of her damage is true damage, which ignores armor, and because she tends to rush a lifesteal item first (and the one in the example had last whisper, the item that you build to counter armor stacking). That should be pretty obvious.
Keitron2 votesYou are kidding right? I mained rammus to diamond but this meta destroys him the vayne in every soloQ one shots and with the thornmail nerfs and all the tank nerf hit him hard. What rammus needs is a rework or his ult 3 second taunt back with more buffs to compensate for the thornmail nerf.
Crveni Malboro1 votesGO on a 2 weak vayne rool in soloq u will fucking take back the words u just said.
Old Man Teeto2 votesOmg a forum poster with a brain...
grabs torch and pitchfork and pretends he doesn't agree
Crveni Malboro1 votesVayne is a highly skilled champion and very hard to play in high elo .. its almost 2 easy to kill her jsut build 4 man thornmail 
,
blkKalameet2 votesthis isn't a problem with rammus.
you shouldn't be soloing a vayne, ever. she drops a load of true damage on you so hard shes just going to shred you and push you away with condemn.
and get yourself a Ryais late game, your q is 1.0 scaling so will hit like a truck. and the slow with your ult will let you control a lot of team-fights by preventing people from getting away.
King Odin1 votesI had 500 armour and Thornmail at 23 minutes and she 1 v 1'd me without taking any damage basically
She had a bortk and shiv
blkKalameet1 votesSo she had a large amount of attack speed to prock her silver bolts, and magic damage prock to help kill the full armor tank.
And since valuable information is missing. How did you ingage on her? If you rolled straight at her and she pinned you to a wall I have no doubt she could kite away from you without much effort.
Crveni Malboro1 votesu didnt buy HP
NemeBro2 votesStop trying to duel duelists as a tank.
http://champion.gg/champion/Rammus
Notice how high his win rate has gotten since his recent buff.
Rammus is strong as fuck. That doesn't mean he can 1v1 Vayne or Master Yi, and only a fucking idiot would think he should be able to.
brad2 votes[{quoted}](name=King Odarth,realm=NA,application-id=3ErqAdtq,discussion-id=KI6s91sd,comment-id=,timestamp=2015-10-02T14:42:47.394+0000)
Currently he stands no chance against a Vayne with LW, Bortk. I had 500 armour and Thornmail at 23 minutes and she 1 v 1'd me **without taking any damage basically. **
honestly fuck off anyone who has ever played rammus knows this is just a flat out lie
if you actually played it correctly vayne would have killed herself its so obvious that you are over-exaggerating
Mimy1 votesbut.. i abuse that Q ratio when I jungle ;-;
without rammus that I love I CANT jungle.. hes my ownly jungler Im okay on D:
Live2LetDie1 votesLet's just get that rammus beef reverted back to s3-early s4 rammus :p he was bae solo q
KingWanahakalugi1 votesLet him scale off armor like taric does now. He'll never be op then.
MacDeath1 votesThreat you are to most adc's.
But 
will still counter you.
Lugg1 votesRammus does need something. I had a Frozen Heart, Thornmail, Iceborn Gauntlet, Warmogs, and Skirmishers. Yet Yi was able to EASILY solo me even though I was ahead of him in kills, assists, and CS. Rammus is supposed to crap all over Yi.
EndlessSorcerer1 votesRammus is good against Master Yi because he can easily lock him down with his taunt during teamfights and gank well early (putting his team ahead while Master Yi farms).
This does not mean that Rammus should fight against Master Yi in a 1v1.
blkKalameet1 votesLate game at least.
Take ignight or exhaust and make yourself a problem in his jungle early and you Well be fine tho.
Xemeron1 votesYou know that taking VAYNE as an example basicly negates your whole argument? Thats like arguing a bulletproove vest is bad, because that Nuclear bomb still kills you...
killd0zer1 votesRammus actually shits on Vayne pretty much all game until late.
She can't kill him until she has like 4 items, he just needs thornmail
Arsenic Sulfur1 votesThis Vayne had only a LW, and Bork. What was that about Rammus shitting on Vayne?
DragonShea1 votesRammus needs a rework. He's too old and his kit needs something to freshen it up, but that could backfire if riot Gave the job of reworking him to someone like.... Um, CertainlyT?
Lintu Puck1 votesBack when there was still DFG ol' Rammus could squish any AD carry since Rammus is an AP Tank. :/ But sadly not much for Rammy these days. All one can do is build full armor/mr (with a Deadman's Plate and Guardian Angel in there) and just hope the enemy doesn't know how to deal with your spikey butt.
Crveni Malboro1 votesTry maining ADC u will quickly realise why ur wrong 
+ =THE END OF MARKSMANS
ARequestOfDeath1 votesbut vayne
DragonShea1 votesTry maining ADC u will quickly realise why ur wrong
'Xpect for .
Budupops1 votes53% win rate says otherwise
Mecha MaIphite1 votes
u jelly of my dank armr scalings bro
DragonShea1 votesVayne is the problem not Rammus, I swear that Riot is behaving like Blizzard now.
Jingerbeardman1 votesrammus is fine as he is right now. Vayne is meant to be one of the adc that do well against him as she is not entirely reliant on raw physical damage and utilizes on hit effect which is one of rammus intended weaknesses.
WookieJesuz1 votesI completely agree. Make his ult have an armor ratio, but don't remove AP ratio, Abyssal is a good item choice and sometimes it's fun to go full 1 shot AP rammus.
Chuck Charles1 votesrammus is a tank. meaning that some people you just can't solo because most of your kit is designed just living longer and CC. 500 armor is one thing. and if you were the right kind of champion you might be able to duel vayne. Malphite for example with 500-600 armor can duel vayne because he has a crippling attack speed slow. rammus does not. he can only taunt you. which doesnt do anything if you are the only one there.
Vayne is designed to counter building pure armor so the ADC kills themselves. if you are against a vayne as rammus why are you not making sure you have team follow up. rammus is best when he is with his team not only soaking up damage, but being a CC nuisance and doing AOE dmg with his ult (which is actually pretty insane if he gets the full channel off before dying in a team fight. )
im not sure what kind of place rammus is in right now, but I have played him a fair amount recently and he feels "ok" (joke intended). I think the biggest thing he needs is lower cooldown Q and maybe double or even triple dmg to jungle monsters on his defensive ball curl (W) to help him clear as before he gets cinderhulk his clears are some of the slowest in the game. and that is honestly what holds him back.
Tworie1 votesYou're losing against Vayne because you're building health items that don't have armor on Rammus and like one armor item... Your Rammus build should be
Ninja Tabi Zz'Rot Portal Randuins Deadman's plate Thornmail Sunfire cape
Jungle Lux God1 votesWhy are you trying to duel a duelist as Rammus?
If you said someone like Ashe or Sivir beat you in a 1v1, then I'd be worried. Citing Rammus as being unable to 1v1 the best duelist ADC in the entire game is not something to be worried about because he fundamentally shouldn't be able to 1v1 Vayne unless he is ridiculously far ahead or he is obnoxiously overpowered.
Also, Rammus getting more armor scalings isn't something that is necessarily good for him because it makes him too reliant on going up against heavy AD comps. Play him against an AP comp isn't really that great for him, and he shouldn't rely solely on not getting those kinds of matchups.