Responding to just a few posts I've seen here, I do think there's a lot of good points being made and it's a good open discussion, but I disagree with a few things and would like to at least provide the other side of the argument for some.
I personally agree with what Orch has said.
While I find Zacian to be extremely powerful, i have learned my way to deal with it. Ubers is a tier where all biggest threats are supposed to compete, and I see no issue whatsoever in one or two being dominant. Unlike Mega Rayquaza, you should point out that Zacian can’t hold an item, the only benefit from that is to take easy the Knock off from Yveltal, but you anyway wouldn’t switch in risking to take a lot from foul play.
I do believe that Zacian works really well as a cleaner and breaker. I find that to be good. People complain on having to run HDB/Rocky Helmet Necrozma Dusk-Mane, but when DM was used spe def during previous genrerations just to beat GeoXern, nobody was saying it was a concern at all. It’s literally the same as Clefable in OU that changes the bulk it needs to check what it needs to.
We’re almost certainly going to ban Zacian, then Calyrex ( for some reasons, people were okay running Phy def Yveltal to beat Ekiller, but are not okay running spe def for Calyrex?!), then people are going to complain that GeoXern is busted, that Zygarde is busted etc. Some teams are designed in a passive way and some are made offensive, it’s normal to run the appropriate checks when you’re running a slow team, and normal to be forced to sack something to get in your own threat while running offense.
I don’t mind Zacian leaving the tier, if there was actually a possibility to abstain from saying ban or no ban I would chose this one.
Unlike Dynamax that was a stupid broken mechanic, this feels like it’s just people not admitting that an Uber threat is a huge threat but can be deal with. I’m positive that what people consider to be the best set ( Play Rough, CC, Wild Charge, Assurance) can be used with regular Zacian and it will do the same. Just will lack the steel typing.
I understand the sentiment here, I think it's a legitimate point of view people can have, but I believe it's missing the mark a bit. People have found their way to deal with Zacian-C sure, I think I've done alright at it as well, but it's through the use of extremely finnicky methods, some of which even mega rayquaza had. Fast wisp arceus, shuca fp ttar, skarm + mgar, etc. all had a chance at beating mega ray as they could live some hits or revenge it back, but they all had fairly easy counterplay from the mega rayquaza side, amplified by its ability to hold an item. I won't pretend to have played when mega ray was around so I'll leave it at that, but everything has ways of dealing with it, just to most people even by ubers standards Zacian-C doesn't have reliable enough ones for how bulky, fast, and versatile it is even without an item because it's ability is basically a choice band with no drawbacks already. You'll see sun teams with Zacian literally 2hko'ing the entire relevant meta, since adamant fire fang does so to necrozma dusk mane 96% of the time, and quagsire drops to solar blade.
I agree with the part about Calyrex, I still personally believe it's way too overhyped in terms of strength and doesn't meet the standards ubers should have for its bans, but it's hard to change that opinion with such a strong mon as the topic. Yveltal works reliably, and I think that's the difference with Zacian-C, nothing's reliable enough.
I don't like the argument about stuff like geo xern, zygarde, etc. going down a slippery slope because there will always be people that complain, but I think currently those both have reliable answers in the meta, and Zacian-C going which isn't the best xern check already since it loses to some chip will break xern since there's still dusk mane, ho-oh/lugia, blissey, ditto, scarf caly (ideally if it stays) etc, and as long as xern's around with other checks I think zygarde will never be broken as well. There has to be a line set somewhere, and I think Zacian-C should be pretty much it.
I don't disagree that dominance in the meta is bad either, but the level of dominance is what has to be discussed, whether or not it's to an unhealthy point, especially as we evolve our tiering system to allow for tests like these.
This is actually very relevant; if we keep banning things from the top of Ubers until we get to a point where it becomes OU, Ubers will cease to be a tier. The problem with banning things from Ubers is that broken does in fact check broken; removing Zacian-C will remove one more check to GeoXern and still force NDM to run physdef for Zacian-H as Orch said. Whilst Zacian-C is on a power level above the rest of the tier, there will always be a mon that sits at the top. Think Kyogre in DPP; specs could ohko most of the tier and, with chip, scarf could 2hko checks such as Latis coming in with the right prediction. The problem with banning Zacian-C is the potential to snowball into more bans, Caly-S will be next but then maybe Zacian-H or Xern. What will check Yveltal and Zygarde once these mons are gone?
Whilst all of this is theoretical and Zacian-C is clearly on a power level above the rest of the tier, it is worth bearing in mind rather than just saying "Ban the broken dog". Ubers "
does not ban based on brokenness" but rather competitiveness - if Zacian-C invalidates some aspects of competitive play then fair enough.
Touched upon this above a bit, but I don't think the argument where things slowly start spiraling to more bans is a good one at all. Since Zacian-C is largely being tested due to the power level and lack of reliable counterplay and it took a while for it to even reach this level since dynamax had to be gone, I doubt that anything will realistically match its current potency in the meta to deserve a test, if anything Calyrex-S which ideally gets easier to handle if Zacian-C goes, but past that everything still has reliable enough counterplay to warrent no suspects. Zacian-H is just objectively worse Zacian-C but it can hold an item so it has more power, but that power likely doesn't make up for what it loses, but we'll see, I just doubt it'll be a problem. Xern has always had much better checks than Zacian-C with stuff listed in the above response, and I just don't think that should be problematic to the point where a ban in ubers is needed. The ideology before this suspect left the tier with no border at which we could ban stuff at the top such as that Kyogre argument, but I think as the power level reaches these heights then things will have to be done, and Zacian-C is the first casualty of that, and imo ideally the only one outside of Gothitelle which is for a whole other set of reasons. As a tier we have to decide where to cut things off, and I think that we won't let the snowball effect happen since there has to be a line drawn somewhere, and it's not hard to stop at Zacian-C because arguably nothing comes close. I can't speak for the rest of the tiering council's thoughts on this matter because it's a very weird one in terms of how bans are dealt with, but from my point of view I think ubers should stick to having minimal bans, but Zacian-C is pretty much necessary to improve the quality of the meta which
a large portion of people dislike.
I think that ubers not banning on brokenness is an outdated concept, but also a highly debated one. It's arguable whether mega rayquaza started the banning of broken things, or if was simply uncompetitive due to its power, or both. I think realistically it's both, and it opened the ability for tiering to evolve in ubers. Looking at what looks to be
the most recent tiering policy discussion where that was the only topic it shows that things
ended with uncertainty in how things will be handled in the future, and I think the concept of banning off of something being broken was already open as a possibility and again arguably happened with mega rayquaza which lacked defensive answers. If you wanted to argue Zacian-C was uncompetitive because it has 0 reliable switch ins and everything can theoretically be ohko'd/2hko'd that's also reasonable, but I think the concept of banning off of something being broken will never go away fully for the playerbase, especially as power creep reaches these new levels where the top current offensive threats both have 148+ speed and 165+ in their attacking stats.
This post dealing with the farceus situation which had its own tiering complications argues in favour of the concept of banning based upon things being broken now being a part of ubers, and while we still have to figure out truly what the identity of ubers wants to be, I think there's solid proof that we have and can ban things based on it being broken.
your argument is based around the assumption that your team either has quag or is goth prone to begin with. not all teams are like this. as a matter of fact, not all teams even run zacian-c. many teams carry multiple solutions for zacian-c as they would with any major threat in the meta. players must also understand that using zacian-c is a liability in itself because not only can they expect their opponent to be prepared for it, zacian-c users can end up biting themselves in the ass because it enables threats like a revenge killing ditto or swagkeys + revenge killing ditto. as for necrozma-dm, we must not act as if it's only function is to beat zacian-c. necrozma-dm is able to beat many other threats as well as being your stealth rocker or maybe even a toxic staller. that along with other zacian-c solutions would contribute to defeating zacian-c and other threats in the process.
If a team wants to reliably defensively check Zacian-C, there's an extremely high chance it's either Gothitelle weak or hazard weak. Teams can carry multiple Zacian-C checks, but none as reliable enough to the point where stacking them will always help in a long game. Putting on like 2 helmet mons that can live some 2 hits from Zacian-C since nothing lives 2 of every hit that's viable and reliable is one of the best ways, but you can still get muscled through like in
this game from circuit finals, where a Zacian-C got 3 kills against a team with Necrozma dusk mane, Phys.def helmet Groudon, Ho-oh, Ferrothorn, and a revenge killer in Calyrex-S, which seems very solid against it since there's like 3 of the standard checks and a revenge killer then ferro which resists 2 hits from standard 4 attacks and is neutral to 1. Stacking checks doesn't work always, and this is clearly a level of preparation higher than for any other threat in the meta, and it's still able to lose.
Using Zacian-C can basically never be called a liability, that's like saying pdon is a liability because people prep for it and stuff like coil Zygarde can spread glare and set up. Ditto loses 1v1 to standard sets now with 4 attacks, and klefki is an unviable mon that will only work if it hits swagger,
doesn't get the confusion that swagger is meant to cause, then ditto comes in and the opponent doesn't have a quagsire, and if they don't it likely just gets 1 kill then a resist can come into the move ditto locks into. I do agree necrozma has uses outside of beating Zacian-C because it can eat some really nice hits, it's issue is that it isn't even a reliable way to beat Zacian-C, since assurance beats it, weather weakens its healing, boots means it doesn't force progress when taking hits, and anything without fast boots twave and earthquake can just get sd'd on and lose if it isn't 4 attacks, and it needs to be at full while all this happens otherwise it can get 2hko'd at 90+%.
The entire list consists of Specs Cal-S, Ditto, Nec-DM most of the time (though it relies on moderately favourable rolls, parahax or Rocky Helmet chip to win) and Quagsire if you really really insist on losing to crits. That is pretty much the entire list of mons that beat Zacian-C 1v1.
I find this funny because with current sets investing into defense a lot, Calyrex-S and Ditto can both just fail to OHKO Zacian-C in a 1v1 and lose quite easily. Dusk mane and quagsire points stand, since it has those 2 as the main reliable switch ins that lose to the things mentioned there as well as sun teams. The list you gave was really small already but just simple advancements into spreads for Zacian shrink it even more.
Didn't respond to everyone with arguments against Zacian but I figure these were some important main ones to look at, since the crowd of people not fully supporting a ban is small. I still stick to the belief that Zacian-C needs to be banned, taking out the subjectivity of me liking using Zacian as well, because I don't believe it's a good mon for the meta to develop, and at the very least ideally improves the mindset that many people have about the meta which is generally very low opinions.