Why are u twistin my words, if anything you're helping my argument a bit, you mentioned pokemon that are consistently checked by said checks/counters, there's also the fact of knowing the meta and what are ur dealing with, if some random dude on ladder popped ur Palkia with CM HP Dragon Kyogre that does not count, nor u find CM Kyogre in this gen anyways, which is the only set that beats Lefties Offensive Palkia. GeoXern is gay but there are several ways of checking besides of having an exact counter, won't mention them here because it's not the topic at hand. Kyogre will always lose to Palkia, Ho-Oh will always lose to Arc-Rock, Yveltal will always lose to Fairy Arc or Defensive Xern and so on. With Shadow Tag users like Gothitelle and Mega Gengar, that does not happen often. Mega Gengar, as mentioned countless times before, can run literally anything that would help it get passed it checks or counters, Pursuit Scizor? HP Fire! Ttar? Focus Blast Ho-Oh and Kyogre? Thunder! But yea, with Gothitelle u can run Charm to lower Ttar's or Aegis' Atk stat when they try to Pursuit trap u and preserve if u need to trap somethin else, Heal Bell is also annoyin as Dice mentioned. I think you got my point already but I will say it once again in case u didnt. Shadow Tag users laugh at the metagame while such "overcentralization" happens and in my opinion, it's not really fair to compare it to any other threat in the Ubers metagame, and the real one, not Mono-bird or Mono-Dinosaur meta.
I think what
shrang is saying is that the checks and counters to these Pokemon are sub-par because they over-centralize so much; for example, Arceus-Rock would be way inferior to Arceus-Water or Arceus-Electric in a meta without Ho-Oh (no, I'm not suggesting we ban Ho-Oh [not even mad if we do tho]). To quote the analysis:
XY Arceus-Rock Analysis said:
Finally, it is worth highlighting that due to its poor defensive typing, Rock Arceus's usage over another Arceus forme should be well-justified. For example, Water Arceus and Electric Arceus are, on the whole, defensively sturdier fomes that can check many of the same threats as Rock Arceus, albeit not nearly as well or consistently.
That's what over-centralization does: it makes people use less effective or niche Pokemon to beat a certain powerful threat. However,
Shadow Tag over-centralizes less, or at least not more, than some powerful Pokemon; Ghost-types cannot be trapped, Dark-types (see: Pursuit) beat all the Shadow Tag users, and there are many Pokemon the Shadow Tag users cannot trap. On offense, many Pokemon are too powerful for Mega-Gengar and Gothitelle (and maybe Wobbuffet) to switch into, like Lustrous Orb Palkia, Kyogre, Yveltal, Mewtwo, Ho-Oh, offensive Arceus forms, and more; on stall, many Pokemon, like Blissey, carry Shed Shell (I concede that this is an example of over-centralization to a degree), or cannot be trapped by certain Pokemon; for example, Gothitelle cannot trap Heal Block Klefki. Balance usually carries few Pokemon that can be trapped by Mega-Gengar, Klefki, or Wobbuffet, and brings a Pursuit-trapper if they do.
"Shadow Tag is uncompetitive!" is another argument I would like to address. The definition of uncompetitive is listed below:
Smogon definition said:
Uncompetitive game aspects (or strategies) are those that take away autonomy (control of the game's events), take it out of the hand's of player's decisions-- and do so to a degree that can be considered uncompetitive.
This can be luck-based, but doesn't have to be (see: 4th gen Wobb, who was effective enough then to remove the ability to "do anything about it" largely from the enemy player, and was banned for uncompetitive-ness); but most uncompetitive strategies that are banned usually have a high appeal to luck.
While there is always luck involved in Pokemon, the problem is the degree to which control is taken away from the player. Removal of autonomy is the key to an uncompetitive tiering decision or clause.
Note: the word "degree" as there are many game aspects that remove autonomy, but the problem is degree of removal (Moody / Double Team remove more autonomy than Quick Claw or fast U-Turn/Volt Switch).
Whether the "degree" of autonomy removal is uncompetitive is debatable, and is subjective (based off of player experience).
Note: Individual Pokemon can be banned for a combination of "overpowered" and "uncompetitive" characteristics-- see 4th Gen Deoxys-S and 4th Gen Shaymin-S bans
In my opinion, Shadow Tag does not take away a significant amount of autonomy-at least, not enough for it to be banned. You always have control; the moves you can choose, and sets you can run, are different choices the player can make that affect the outcome. True, Gothitelle can trap and set up on any Pokemon that cannot significantly harm it; however, that's the player's fault for not preparing for it. In addition, like any other threat, Shadow Tag can be played around with clever double switches, U-turn, Volt Switch, or Baton Pass, or other ways to beat it on individual Pokemon.
Shadow Tag users are just new threats that must be prepared for differently; instead of bringing one designated counter, each Pokemon must be equipped to check it (or have a Pursuit trapper, the option I like less). This is a change, but not necessary a negative one; the metagame can and will adapt.
Finally, I'd like to talk about Shadow Tag in regards to Ubers philosophy. According to
bojangles, the BW Ubers tier leader, Ubers is "the metagame with the least amount of bans possible." That alone tells us that we should not ban Shadow Tag unless it is absolutely necessary; as you can see from my paragraph above, I don't believe it is. Personally, I see no way Shadow Tag violates Ubers philosophy; sure, it causes reliance on team matchup to a degree, but so do many things. As I said earlier, it's a player's fault for not being prepared for a threat, and Shadow Tag, while very effective, is still just another threat. Team matchup is inherent in Pokemon; if your team is all grounded, relatively frail threats, then you are going to get torn apart by Sticky Web. Without wallbreakers / stallbreakers, lures, or powerful setup sweepers, Stall tears you apart; see where I'm going with this?
In conclusion, I believe that
Shadow Tag should not be banned. Thank you!
tl;dr read the thing