Overview
########
Zapdos is a fantastic check to several dangerous sweepers that reside in OU. It has a fantastic defensive typing, being weak to only two things while having great resistances and an immunity. It also has reliable recovery in Roost, making it, arguably, a better Defogger than the likes of Empoleon. Zapdos' Zapdos's main niche is the ability to put pressure on offensive teams with it's its strong good bulk, typing, offensive presence, (AC: serial comma) and the ability to Roost stall things strong foes (not 100% sure what you mean so if you can be more specific than this, go ahead - 'things' is way too vague + colloquial though) like Latios and Thundurus. It deals with Choice-locked Talonflame and Staraptor, as well as Mega Pinsir and Mega Pidgeot. It also beats Bisharp one-on-one, (add hyphens) which no other Defogger other than Mandibuzz can do without having to run a Hidden Power. (my metagame knowledge is kinda meh so I could be wrong here, but afaik Mandibuzz can't viably run HP Fighting or Fire or w/e - in that case, there's also no point in mentioning it and it would be better to remove the Mandibuzz bit) However, Zapdos does have a nasty weakness to Stealth Rocks Rock, which limits its switch-in (add hyphen) opportunities, (RC; assuming you mean the SR weakness is generally bad for a Defogger. Keep the comma if you meant to say that Zapdos sucks as a Defogger) and is generally bad for a Defogger. It also is completely outclassed offensively by both Thundurus forms formes. It doesn't even have a good Flying STAB move outside or Air Cutter, which has low base power anyways, (if it sucks, like Air Cutter does, it isn't a 'good' Flying STAB move) which means the its secondary typing it has is useless offensively. However, once you look past its flaws, Zapdos is a great defensive Defogger that fits well on a lot of teams. (contentless, generic closures should be avoided)
Physically Defensive
########
name: Physically Defensive
move 1: Thunderbolt / Volt Switch
move 2: Roost
move 3: Defog / Hidden Power Ice
move 4: Heat Wave / Toxic
ability: Pressure
item: Leftovers
evs: 252 HP / 172 Def / 68 SpA / 16 SpE Spe
nature: Bold
Moves
========
Thunderbolt is Zapdos' most reliable STAB move that and does a lot of damage, even when mainly uninvested.. Volt Switch allows Zapdos to be able to (redundant with 'allows') take a hit a team mate teammate would not want to and proceed to bring it in, and when paired with another Pokémon Pokemon (C&C standards don't use the acute here) with Volt Switch or U-turn, it allows you Zapdos to keep momentum. Roost is for regaining HP and migrating the mitigating Zapdos's Stealth Rock weakness. Defog is for removing Stealth Rocks Rock, although Hidden Power Ice can be used to beat common switch-ins like such as Landorus and Garchomp. Heat Wave is for stopping Ferrothorn and Bisharp, although Heat Wave only has a small chance to KO Bisharp, while Toxic can be used to wear down other walls and common switch-ins. (add period) as well
Set Details
========
The EVs on the set are to give Zapdos as much physical bulk as possible, while still having a bit of offensive presence. Leftovers are the only item you would really want to use on defensive Zapdos, since as it improves its longevity on the field. The Special Attack EVs are to guarantee the knock-out (add hyphen) on Mega Pinsir, even with out without Stealth rocks Rock on the field. 16 Speed EVs are implemented allow Zapdos to outspeed Bisharp and attempt to KO it with Heat Wave.
Usage Tips
========
Try to avoid switching into Stealth Rocks Rock too much, as every time you switch Zapdos switches in without Defogging using Defog, (don't use a move name as a verb if you can avoid it) you loose it loses 25% or your of its HP. Avoid status ailments (to correspond with subsequent 'them') like Toxic, as Zapdos has no real reliably reliable way of removing them, (RC) and they wear down Zapdos extremely quick. (eh, tbqh this section comes off a bit skimpy to me... what Pokemon do I need Zapdos to check/counter, are there any specific threats it should switch in on? in the overview you mention it's a fantastic check to several dangerous sweepers, and here is where I would expect some of those sweepers to be mentioned, as well as some elaboration on how to use it as a birdspam check)
Team Options
========
Powerful Fighting-type (add hyphen) Pokemon that can scare off Chansey and Tyranitar, (putting examples in the middle of a category description is undesirable) like such as Mega Heracross, Mega Gallade, (AC) and Terrakion, (AC) who can scare off Chansey and Tyranitar work fantastically as team mates teammates, since as (causal since is unexpectedly tricky to use properly so it's best to just stick with as or because) those two Pokemon are known to switch into Zapdos. Healing Wish or Aromatherapy support (also some examples here please) is also helpful to get rid of status like Toxic. Bulky Steel-types (add hyphen) like such as Excadrill, Bronzong, (AC) and Jirachi have great synergy with Zapdos, (RC) and deal with Latios that lack Hidden Power Fighting or Hidden Power Fire.
Specially Defensive
########
name: Specially Defensive
move 1: Thunderbolt / Volt Switch
move 2: Roost
move 3: Defog / Heat Wave
move 4: Hidden Power Ice
ability: Pressure
item: Leftovers
evs: 248 HP / 64 Def / 180 SpD / 16 Spe
nature: Calm
Moves
========
Thunderbolt is once again (no cross-set referencing) a powerful STAB move that hits decently hard. Volt Switch is a momentum gainer, but if you don't Zapdos doesn't use Defog before switching out, you take it takes another 25% damage when you switch switching back in. Roost heals the damage you take if you decide to switch in to Stealth Rocks. Hidden Power Ice is for both forms formes of Landorus and things foes like Dragonite. Defog is obviously to remove Stealth Rocks Rock, although Heat Wave hits Ferrothorn and Bisharp more harder than Thunderbolt would.
Set Details
========
The EVs given maximize Zapdos' Zapdos's special bulk, allowing it to counter Landorus-I Landorus, as well as allowing it to live a +2 Return from a Mega Pinsir after Stealth Rocks Rock. 16 Speed EVs are once again to outpace Bisharp. Leftovers are still the best item to have, since as the slow regain of HP helps increase longevity.
Usage Tips
========
Stealth Rocks are Rock is still (if by this you once again mean 'as with the physically defensive set'; otherwise it's fine) a huge issue for Zapdos, so make sure to use Defog before switching out. Zapdos, while bulky, still does not take super effective hits such as Greninja's Ice Beam too well, like Greninja's Ice Beam, so be wary against of staying in against Pokémon Pokemon like that. Don't use Zapdos for to take on Pokémon Pokemon such as Scizor who that will most likely just U-turn out, since this usually wears Zapdos down more than it should, as you need a free turn to use Roost. (self-explanatory)
Team Options
========
Pokemon like Mega Heracross certainly appreciate Zapdos' Zapdos's removal of common Flying-type (add hyphen) Pokémon Pokemon. Having a cleric Pokémon Pokemon like such as Latias is fantastic for removing burns or Toxic. Good physical walls like such as Landorus-T that handle powerful set up setup sweepers like such as Mega Gallade lacking Ice Punch (purely for readability you might wanna replace this with a setup sweeper that Lando counters period) support Zapdos, since as Zapdos cannot beat most of them.
Other Options
########
U-turn is an option over Volt Switch if you don't want Zapdos to be stopped by Ground-type (add hyphen) Pokémon Pokemon before you switching out. Choice Scarf Zapdos, while outclassed by Thundurus, provides a nice surprise to opponents who expect a bulky set. Rocky Helmet is an option over Leftovers, especially on the specially defensive set, since as it allows you Zapdos to deal much better with physical attackers. Roar is good against set up setup sweepers and helps stack up entry hazard damage. Discharge is mostly an inferior Thunderbolt, although the added chance of paralysis is helpful.
Checks & Counters
########
**Stealth Rocks Rock**: Keeping Stealth Rocks Rock on the field is a great way to wear down Zapdos and cost it turns since because it has to use Defog to clear them.
**Set Up Setup Sweepers**: Zapdos can't do a whole lot much (less colloquial) to set-up setup sweepers like such as SD Swords Dance Garchomp and Nasty Plot Thundurus, (RC) if it's lacking HP Hidden Power Ice, and Mega Charizard X can cleanly set up with no issues.
**Powerful STAB Attacks**: Even though Zapdos is bulky, strong attacks like Dragalge's Draco Meteor and Talonflame's Flare Blitz still (redundant with the 'even though' clause, a coordinator like this is redundant in written text. Similar to coordinating with 'if...then', in written text you should leave out the 'then') do a lot of damage.
**Special Walls**: Walls like Chansey, Tyranitar, (AC) and Goodra are prime counters to Zapdos, as even with Toxic, they can beat Zapdos with enough time. (please clarify what you mean by this; to me it reads as though you mean 'by stalling it out' but that can't be right)
