I literally cannot fathom how anybody could support the antiban argument unless they are scrubs or legitimately stupid
Allow me to repeat what's already been said in language you can understand:
-You do not need specialized checks or gimmick counters to beat BP teams
-If you can't beat BP chains without some stupid overspecialized gimmick, it's because you are terrible at prediction or have no idea how to fight BP properly
-Try reaching the suspect requirements on the OU test ladder with a standard BP chain, when you're done getting your ass handed to you please tell me how "broken" or "overpowered" it is
-There is a fucking reason 95% of high rated players are not using BP chains on the suspect ladder- it is HARD AS HELL to win with these teams when hyperoffense has so many tools to instantly trap and wipe out a BP chain
For the curious- I feel like I've had enough experience using this team against good players (and seeing other BP users in action) to have an idea of what works against BP and what doesn't. Here's some advice (not a complete guide, I'd have to write pages on that) on how standard hyperoffence cores can beat BP players reliably:
LEADS:
-Landorus, Thundurus, Breloom, Talonflame, Mega Pinsir, and Deoxys-S are all reliable leads against BP chains
-Having more than one of the above threats (Talonflame and Breloom being an especially nasty combination) will often force BP players to make mistakes with their lead, which can put them in an extremely poor situation early game
-Once you know what a BP user is likely to start with, you can take advantage of this fact and send out an offensive threat which immediately forces them to switch
-If you have a Talonflame or Mega Pinsir on your team, expect a BP player to ALWAYS lead with Zapdos.
-Since neither Talonflame or Mega Pinsir will beat Zapdos 1v1, you should immediately switch to a physical attacker like CB Tyranitar which can threaten the entire chain and doesn't die to Thunderbolt
-If you have a Breloom or Landorus on your team, they will almost always lead with Scolipede.
-Landorus should generally be using Stealth Rock turn one if you have it, otherwise alternate between Earth Power and Sludge Bomb (for the inevitable Sylveon switch)
-Breloom needs to be constantly throwing out Rock Tomb, this prevents Speed Boosts from accumulating and makes it difficult for Scolipede to stay in. If you predict an Iron Defense turn one go for Spore instead
-If you have a Thundurus or Deoxys-S, it's a toss up between Sylveon or Scolipede.
-Max speed Deoxys-S will outspeed Denisss's standard Scolipede set at +1, so it's generally a safe bet to Knock Off turn 1 (predicting a possible Espeon switchin) and then try throwing out a Psycho Shift if they Protect
-Thundurus should be Thunderbolting against Scolipede turn one and Thunder Waving against it turn two. Taunt will NOT work against it.
-Both Thundurus and Deoxys-S will lose to to Sylveon 1v1, but Sylveon is an excellent opportunity to bring out a hard hitting attacker that can set up on it like Mega Mawile or Excadrill
VAPOREON TAUNT TRAP:
-Send in a Pokemon that baits out a Vaporeon switchin, then send in a Pokemon with Taunt which outspeeds it (Thundurus being a good example)
-Throw out Taunt and Vaporeon will be unable to do anything, if Ingrain is down it will die to Struggle damage and end the chain (usually winning you the match)
-Late game, this is the absolute best way to ruin a BP chain without banking on moves like Haze (which only delays the inevitable)
-Good baits for Vaporeon include Charizard (either Mega), Mega Mawile, Scizor (only if Zapdos is weakened), Bisharp, Chansey, Tyranitar, and Infernape
MAINTAINING THE PACING OF THE MATCH:
-As stated earlier, most Baton Pass chains have a much more difficult time stopping physical sweepers than special sweepers. This means you should aggressively prevent the likes of Scolipede or Vaporeon from accumulating defensive boosts with the threat of super effective attacks. Because they can't take much damage on the special side, this isn't particularly hard to do.
-Until Ingrain gets up, the threat of Whirlwind/Roar will consistently force Espeon in, which you can predict around and heavily damage it physical attacks
-The threat of hazards function similarly. Send in Ferrothorn into Smeargle, for instance, and they will be forced to take either a possible Leech Seed or have Espeon get demolished by Gyro Ball
-U-turn/Volt Switch can reliably force out Espeon/Vaporeon while maintaining momentum, allowing you to continually apply pressure no matter what they BP to
-Dark type Pokemon can almost always switch in for free on Espeon, forcing it out while you hammer the predicted switchin with status or a super effective coverage move (Bisharp is particularly effective at this)
-Baton Pass reduces the need for prediction, but that doesn't mean you have to be predictable. If, for instance, you know that an opposing Zapdos HAS to switch out of your sweeper, you can immediately send in something like Talonflame (which is usually countered by Zapdos) as they are forced to BP to something else.
OTHER SETS THAT ARE NASTY AGAINST STANDARD BP (AND USEFUL OTHERWISE)
-Dragon Dance Mega Charizard X with Thunder Punch
-Life Orb Gengar with Shadow Ball/Sludge Bomb
-Specially offensive Aegislash with Shadow Ball/Iron Head
-Stuff with Taunt that can hit Espeon hard (Gyarados and Terrakion are examples)
-Mixed Kyurem-B
-Choice Band Scizor
-Belly Drum Azumarill
-Tail Glow Manaphy
-Calm Mind Clefable
-Excadrill in the sand- it can outspeed and take out Sylveon even after several boosts
-Anything with Haze (Greninja is an excellent choice)
DEALING WITH SMEARGLE:
-Always have a predetermined Spore absorber, preferably a special attacker since BP chains have an easier time walling them
-Smeargle usually gets knocked to Sash if they try to come in early game, at which point they will either Spore or Ingrain (if they predict your switch out)
-Greedy/inexperienced BP users will try to Ingrain or Quiver Dance after they Spore- you can advantage of this by sending in something with a faster Taunt or a priority attack
-Mach Punch Breloom is the absolute best switchin to a weakened Smeargle, threatening to KO it no matter what move it makes
BATON PASS MIRROR MATCHUPS:
-BP mirrors are a convoluted matchup that often comes down to whoever's Espeon dies first
-If you and your opponent are using BP chains, it's nigh impossible for a BP user without Heart Swap Smeargle to beat one that has the move
-Espeon has a significant advantage offensively against both Zapdos and Sylveon because Secret Power scales up enormously after multiple Calm Minds
-Substitute from Scolipede followed by a quick switch to Smeargle (to get down Ingrain) is generally the best opening in a BP mirror matchup, but if you predict the Smeargle switchin you should go to Sylveon instead to break Smeargle's sash with Hyper Voice
-After a speed boost + Ingrain you need to be boosting up Calm Minds as quickly as possible. Sylveon is bulkier/more threatening at first but eventually you will have to switch to Espeon
-If and when the opposing Espeon goes down, what you do next is entirely dependent on how much health you have left. If you have enough for a sub (you should, if you got Ingrain),
it is possible to lock down an opponent's BP team and guarantee yourself a win. I'm assuming that both players are playing ideally (bad BP players will lose no matter what) and both players have Heart Swap Smeargle. How the lockdown works is like this:
-Attack with Espeon's Stored Power as Smeargle steals your boosts, bringing it to 1 HP. Use Substitute the turn after.
-If they stayed in with Smeargle as you used Substitute, attack with Stored Power to force it out
-If they switch to Sylveon, allow it to knock out your Espeon while you Calm Mind up. Bring in Smeargle, use Heart Swap, then either pass to Sylveon and sweep (if they stayed in) or use Spore (if they go to Smeargle as you Heart Swap), which also leads to a sweep.
-If they switch to Scolipede, Zapdos, or Vaporeon, immediately switch to Smeargle and Heart Swap back the boosts. If they attack with Zapdos or use any stat boosting moves/protect as Smeargle comes in, you can Baton Pass the stolen boosts to Sylveon and sweep with Hyper Voice. If they switch to Smeargle as you Heart Swap, Spore as usual and then proceed to sweep.
-If they use Substitute on any of the three above Pokemon as Smeargle comes in and then proceed to switch to their own Smeargle as you Heart Swap, you cannot Spore it back and will be forced into a stall war. However, you will always be 1 PP ahead because they used Heart Swap first and should have no difficulty shuffling around your opponent's team until they eventually are forced to concede a sweep.
-If for whatever reason you cannot make a sub, things can get messy- your best bet is probably to switch to Scolipede and hope they don't Spore as you do so. Once this happens you get get up your own Substitute easily and aim to proceed as described above.