I think this might be the biggest disagreement we have. And its one I commonly have with people. I generally dislike it when 1 army/unit/etc. becomes the ultimate at X to the point others cannot even begin to complete on X with him.
Thankfully, if one army is the best melee army they probably suck at other things. Maybe try to beat them with your combination of good things instead of only trying to beat them in the one area they are better than you at.
It also often flat out isn't fun as it often means the overpowered model dictates the game. You can no longer use X yourself, and the only viable counter is Y, you want to do X yourself or try using Z as a counter? Tough luck you can't.
You can always use X, it just might not be as effective as you want. Nagash doesnt make other spell casters obsolete. He makes spell casting harder to use against him because he costs 800 points and is intended to be a powerful spellcasting model. He has OODLES of other weaknesses that you can exploit. Exploit them.
Also for clarity, when I say "breaks" the game. I didn't mean the entire game fell apart and now the only wat of playing is to use that one army. I mean the same thing that
@Killer Angel mentioned. They regularly release things that break what should be limits. Then to fix the issues caused by breaking these limits they have to break another limit. See
@Killer Angel example of GW slowly increasing save values to the point they're now forced to increase Mortal sound spam again just to deal with that.
But they didn't really do that. MW spam was worse when original changehost was around, and armies like KO and OBR and warclans are doing just fine without MW spam. If you're saying more units have access to MW, absolutely. But thats a good thing. MW shouldn't be relegated to a tiny handful of units because its an important tool that lists need access too.
The average save being 4+ for a standard battleline unit vs 5+ when the game FIRST WAS RELEASED is not this extreme example you're making it out to be. There is 1, literally 1 unit in the game that is problematically tough and their biggest problem isn't even their toughness! It's that they are an equally "strong" unit as a tough one. If mortek had 1 or even 2 attacks each at 4s/4s no rend 1 damage no one would care about them.
Also I really really dislike it when people claim the meta doesn't matter for anyone except the top 1%. Yes most players won't need to play optimale lists, but the meta will affect them, often in a more problematic way since they frequently don't have the skills to respond appropriatly to a threat by taking advantage of whatever weaknesses one of these overpowered things might have.
I don't know what else to say here other than i'm sorry? It doesnt really matter if you like it or dont like it, it's the truth. The meta doesnt matter to most players because most players shouldn't be playing cutting edge meta lists if they aren't in a situation where a cutting edge meta list is demanded. OBR's existence doesn't stop people from playing melee lists anymore than tzeetch's existence stops people from playing OBR. OBR is problematic for other melee lists when you're running 90 mortek and double harvester. So just don't do that. If you're not playing in a tournament, why is that a problem?
And yes of course you can agree not to use X, and bringing a proper tournament list to a casual game makes you that Guy. But seemingly more "minor" issues Will still creatie problems. For example I wouldnt be surprises if Teclis ends up mostly irrelevant in high level tournaments, but is still viewed as broken by the community at large since a lot of players simply won't manage to figure out how to deal with him in a fun way.
Minor sidenote, if this post is littered with errors I blame autocorrect, cuz I'm typping this on my phone
I'll say it again for the people in the back. HAVING BAD MATCHUPS IS OKAY. It's why competitive events are built around multiple games. It's why casual games should treat the social contract more importantly.
And teclis is bad and if you can't deal with him you should get better at the game not complain that the game should cater to you. And by better at the game i don't mean bring more overpowered units. I mean literally understand the game better. Or maybe that matchup is just particularly shitty for your army. In that case you, as an individual playing 1 game with another individual, can talk to the other player about a situation thats more fun for the both of you. And honestly the solution probably isn't "don't play Teclis" because there isn't a single unit or model in the game that creates that drastic of an impact without other compounding factors. As
@Grotpunter said, Kroak isn't overly oppressive on his own. He's overly oppressive with a saurus guard unit protecting him, an astrolith to make his casts better, a balewind to make his range better, and teleporting range units to distract from him. Nagash, Archaon, morathi, teclis, Kairos, mortek, flamers, harvesters, salamanders, KO boats, rogue idols, 'ard boys, etc etc etc etc etc none of these are gamebreaking on their own.
I think you could have an argument for salamanders or flamers or other units that are just blatantly undercoasted, but those are certainly outliers and generally those outliers get knocked down.
It sounds like you just don't like age of sigmar, which is fine. But that doesn't mean we have to change age of sigmar from something a lot of people already like. Better for you doesnt mean better for everyone.
This idea that "i should be able to play X and do okay with it in spite of everything" is frankly, absurd. Casual vs casual simply isn't an issue unless you're incapable of talking to your opponent.
At this point everyone is familiar with my list from the first book. No one would call it competitive. I played it at all levels with no problems. In casual play i told people to play whatever they wanted cause i liked the practice. If i didn't like the practice I would have no problem asking people to not play tournament level lists when we aren't in a tournament.
Basically, if you're a casual player and this stuff is dramatically impacting your playing experience you need to do a better job of dealing with the social contract between the two players. It's not hard to say "hey the army i like to play can't really deal with 90 mortek and double harvesters. Would you mind taking a different list?" and if they say no you can decide whether or not you want to play them. If they say yes, then problem solved.
Final edit: this conversation has been great, but I think we're starting to get to that point where we just swirl around the same topics so i'm going to politely make this my last response. Sorry for derailing a thread about realms (which are pretty whatever IMO). If there are specific questions, i don't mind answering those, but If i want to respond to this just kind of general, larger topic it'll be in PMs
I lied, one more:
My issue is casual vs casual, when one of them does't have realistically the instruments to win because the other player uses something that has been pushed in power
I fundamentally don't think this issue actually exists unless theres little to no communication between the players at all. Nagash isn't an "i win" button anymore than morathi or any other example you might have in mind for this scenario. Nothing has been "pushed in power" so much that nothing else can compete with it.
Certain combinations of elements can be impossible to compete with for other certain combinations of elements. This is a problem that's easily solved with a simple conversation.