Sorry I kinda suck at intros. Hi welcome here's the team, is that good enough for an intro?
Teambuilding process: Standard UU stall team, up until Mew got banned so I had to bring it into OU.
jk
Actually I totally designed it around the OU meta, and the 2nd battle I tested it, someone pointed out "nice UU stall"...and I realized, it was (at the time).
I started with mega aerodactyl, who has mediocre defensive stats but compensates with a niche typing (birdspam you may kiss your ass goodbye), Roost, and super high speed.
Suicune goes on so many stall teams I build, it's one of the most reliable win conditions and I just don't get tired of him.
Next I wanted a cleric; fuck chansey, and Sylveon was getting kind of old, so I tried something new. No wish means I would need Recovery on every team member, but I managed.
Porygon2 was my generic special wall, because fuck chansey, and celebi wasn't going to be a catch-all special wall with 7 weaknesses.
Hippowdon was my SR setter, and a bulky enough physical wall to take on stuff like Mega Pinsir, Charizard X, and really just a lot of stuff that couldn't hit Super Effective or set up on it.
Mew made up the defogger, could burn things reliably, and was another decent stall breaker alongside Suicune.
Team indepth:

Aerodactyl @ Aerodactylite
Ability: Pressure
EVs: 248 HP / 144 Def / 60 SpD / 56 Spe
Jolly Nature
- Rock Slide
- Roost
- Ice Fang
- Wing Attack / Aerial Ace
Aerodactyl started off my team. It flips the bird to birdspam better than anything else in OU, and with the special defensive investment, also covers Charizard Y and Landorus.
Rock Slide is the typical STAB attack to hit all of the bird spam team members and Charizard, Ice Fang's primary target is to OHKO Landorus, and Wing Attack takes out Mega Heracross and Mega Medicham (they are dangerous enough that I would rather be able to revenge kill them than stall break with Taunt). If you haven't figured out that this is a stall team, well, it is, and so Roost should be pretty self explanatory. Unfortunately it's a little tricky to use in practice, because many of the main threats that Aerodactyl is trying to cover can hit it super effective when it's roosting (and the high speed kind of works against it here).
Aerial Ace vs Wing Attack is really inconsequential, just pick the one with the cooler name/animation imo. Wing Attack has more PP, Aerial Ace can hit through Sand Veil and Acupressure shenanigans. I have never needed the extra PP nor the perfect accuracy in any of my battles with this team.
The EVs allow Aerodactyl to switch on Timid Charizard Y's Fire Blast twice (again I might not be able to roost safely in between them), as well as Landorus' Focus Blast. The speed beats Mega Pinsir on the mega turn, and Greninja, Torn-T, and Weavile afterwards. The rest is in physical bulk to handle bird spam which is 90%+ of the time physical.

Suicune @ Leftovers
Ability: Pressure
EVs: 248 HP / 244 Def / 16 Spe
Bold Nature
IVs: 0 Atk
- Scald
- Calm Mind
- Rest
- Sleep Talk
Suicune is my personal stall crutch. Instead of 100 turn games, Suicune can make them 60 turn games. Instead of pointless stall vs stall stalemates that only end because PP is limited, I target the 1-2 Suicune checks and focus on eliminating them. Instead of letting Mega heracross come in 5 times and force me to sac a mon 5 times to force it out, I work to set up a sweep and Suicune breezes through it. And Suicune is a pretty generic but effective bulky water, that checks mons like Mamoswine, Excadrill, Talonflame, Bisharp, Azumarill, non-Grass Knot Greninja, I don't wanna keep listing here all day.
The set is as standard as it gets, maybe with the exception of the couple speed EVs. A faster Calm Mind or Rest makes it easier to set up on Rotom-W's Volt Switch, as well as Mega Venusaurs that try to speed creep Rotom-W and Suicune.

Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
IVs: 0 Atk
- Perish Song
- Giga Drain
- Heal Bell
- Recover
Next role up was Cleric. As I said earlier, fuck Chansey. Irritating piece of fatass shit. Sorry, I had to get that out of my system. Normally, I go to the next best cleric, Sylveon, but I was kind of sick of every stall team having that same Suicune-Sylveon core...I looked around at some of the other status removers, and eventually decided to use Celebi. That meant I couldn't Wish pass, though. This Physically defensive Celebi set beats nearly every water type in OU, including Keldeo, Rotom-W Azumarill, Suicune, Mega Gyarados, even puts up a fight against Manaphy whose Tail Glow + Rain Dance set is 6-0'ing most stall teams out there now.
Heal Bell is there because it's kind of crippling to take a burn or toxic one turn when I'm not expecting it. Recover is pretty obvious, Giga Drain is there to beat up on water types. Perish Song is my team's primary defense against slow set up sweepers, most notably Suicune and Clefable. I skipped Baton Pass because Celebi can actually tank some Pursuits with a physically defensive spread, and even potentially defeat some Tyranitar.

Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Recover
- Discharge
- Ice Beam
- Tri Attack
At this point I kind of needed a generic, catch-all special wall. Hopefully I've let out enough profanities about Chansey that you get my point. Celebi couldn't run that role with 7 weaknesses. I picked a pokemon with a very neutral typing, and very good bulk. Unfortunately Porygon2 shares many of Chansey's weaknesses; any pokemon that goes out of their way to run Knock Off and/or Superpower will catch Porygon2 as a side effect. But Porygon2 actually does damage, so I can still say it's not outclassed yay. Porygon2 checks most special attackers, including Greninja, Landorus, Thundurus, even Timid Charizard Y falls just short of 50% damage on its Fire Blast.
Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Slack Off
- Earthquake
- Stealth Rock
- Roar / Fire Fang
There's been a lot of power creep in Gen 6 with a lot of megas that hit way too hard. Generally the only way to cover some of the stronger ones is to get a specific pokemon that resists its stabs, isn't weak to coverage, etc, because even fully invested bulky walls won't cut it. Well, Hippowdon is the closest you can get to "cutting it", standing up to Megas like Charizard X, Pinsir, andMawile maybe even living to tell all the little Hippopotas' at the local bar. I also started to need some hazard control at this point; while I could force Mega Aerodactyl to set Rocks or Defog them, he wasn't all that great at either role and I definitely didn't want to force him to do both.
Fire Fang is the only unusual looking move on this set; it hits Mega Scizor (yet still does surprisingly ass damage), Pinsir, Heracross, Ferrothorn, Balloon Excadrill and maybe Breloom on the switch. But that slot is up for grabs, if you can convince me something else will do better. The only other thing to mention about the set is why I picked Sand Stream over Sand Force; normally I hate the passive damage, but Hippowdon could use it on the opponent since it's Earthquake isn't all that powerful (like that chip damage really counts vs Charizard X), and it beefs up Mega Aerodactyl's special defense though that rarely comes into play; bird spam doesn't really dare come in Hippowdon because they can't break it too easily, while Charizard Y will just take the sand away anyways, meaning I don't get many reasons to switch directly from Hippowdon to Aerodactyl.
Edit: Thanks to ZCorps' suggestion, I have started running Roar over Fire Fang. It's actually pretty useful. It still stops Mega Scizor from setting up to +6 on the team, stops Pinsir and Heracross from sweeping and probably does more net damage to them if I keep rocks up (it does do more to Pinsir, and for Heracross, it probably adds up to more if it switches in on an attack). Also, those baton pass teams.

Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 96 SpD / 160 Spe
Calm Nature
IVs: 0 Atk
- Will-O-Wisp
- Defog
- Roost
- Taunt
Finally, we're nearing the end. I wanted a better hazard remover than Aerodactyl, and Mew did a couple of other things. First, it's always nice to have Will-O-Wisp somewhere on stall, the damage allows me to play passively and still be getting somewhere in terms of wearing out the opponent, and it makes physical attackers literally twice as easy to deal with. Mew adds to this team's onslaught vs physical attackers, and is one of the best answers to Mega Medicham (unfortunately I couldn't fit in an attacking move to break subs). If it needs to, it can take down many hard hitting pokemon with a fast Will-O-Wisp, maybe taking one for the team if I want to cripple mega heracross or something.
The moves are, very ironically, standard for Mew, basically slapping defog onto its stall breaker set. The speed creeps on Adamant Excadrill, who more importantly is 2 points above Jolly Mega Heracross. Physically defensive is only to help with Medicham, otherwise I could use some more special bulk just because the team is already heavy on physical walls. So I can't really make up my mind there.
Anyway, that's it for the team, thanks for reading.






Teambuilding process: Standard UU stall team, up until Mew got banned so I had to bring it into OU.
jk
Actually I totally designed it around the OU meta, and the 2nd battle I tested it, someone pointed out "nice UU stall"...and I realized, it was (at the time).
I started with mega aerodactyl, who has mediocre defensive stats but compensates with a niche typing (birdspam you may kiss your ass goodbye), Roost, and super high speed.
Suicune goes on so many stall teams I build, it's one of the most reliable win conditions and I just don't get tired of him.
Next I wanted a cleric; fuck chansey, and Sylveon was getting kind of old, so I tried something new. No wish means I would need Recovery on every team member, but I managed.
Porygon2 was my generic special wall, because fuck chansey, and celebi wasn't going to be a catch-all special wall with 7 weaknesses.
Hippowdon was my SR setter, and a bulky enough physical wall to take on stuff like Mega Pinsir, Charizard X, and really just a lot of stuff that couldn't hit Super Effective or set up on it.
Mew made up the defogger, could burn things reliably, and was another decent stall breaker alongside Suicune.
Team indepth:

Aerodactyl @ Aerodactylite
Ability: Pressure
EVs: 248 HP / 144 Def / 60 SpD / 56 Spe
Jolly Nature
- Rock Slide
- Roost
- Ice Fang
- Wing Attack / Aerial Ace
Aerodactyl started off my team. It flips the bird to birdspam better than anything else in OU, and with the special defensive investment, also covers Charizard Y and Landorus.
Rock Slide is the typical STAB attack to hit all of the bird spam team members and Charizard, Ice Fang's primary target is to OHKO Landorus, and Wing Attack takes out Mega Heracross and Mega Medicham (they are dangerous enough that I would rather be able to revenge kill them than stall break with Taunt). If you haven't figured out that this is a stall team, well, it is, and so Roost should be pretty self explanatory. Unfortunately it's a little tricky to use in practice, because many of the main threats that Aerodactyl is trying to cover can hit it super effective when it's roosting (and the high speed kind of works against it here).
Aerial Ace vs Wing Attack is really inconsequential, just pick the one with the cooler name/animation imo. Wing Attack has more PP, Aerial Ace can hit through Sand Veil and Acupressure shenanigans. I have never needed the extra PP nor the perfect accuracy in any of my battles with this team.
The EVs allow Aerodactyl to switch on Timid Charizard Y's Fire Blast twice (again I might not be able to roost safely in between them), as well as Landorus' Focus Blast. The speed beats Mega Pinsir on the mega turn, and Greninja, Torn-T, and Weavile afterwards. The rest is in physical bulk to handle bird spam which is 90%+ of the time physical.

Suicune @ Leftovers
Ability: Pressure
EVs: 248 HP / 244 Def / 16 Spe
Bold Nature
IVs: 0 Atk
- Scald
- Calm Mind
- Rest
- Sleep Talk
Suicune is my personal stall crutch. Instead of 100 turn games, Suicune can make them 60 turn games. Instead of pointless stall vs stall stalemates that only end because PP is limited, I target the 1-2 Suicune checks and focus on eliminating them. Instead of letting Mega heracross come in 5 times and force me to sac a mon 5 times to force it out, I work to set up a sweep and Suicune breezes through it. And Suicune is a pretty generic but effective bulky water, that checks mons like Mamoswine, Excadrill, Talonflame, Bisharp, Azumarill, non-Grass Knot Greninja, I don't wanna keep listing here all day.
The set is as standard as it gets, maybe with the exception of the couple speed EVs. A faster Calm Mind or Rest makes it easier to set up on Rotom-W's Volt Switch, as well as Mega Venusaurs that try to speed creep Rotom-W and Suicune.

Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
IVs: 0 Atk
- Perish Song
- Giga Drain
- Heal Bell
- Recover
Next role up was Cleric. As I said earlier, fuck Chansey. Irritating piece of fatass shit. Sorry, I had to get that out of my system. Normally, I go to the next best cleric, Sylveon, but I was kind of sick of every stall team having that same Suicune-Sylveon core...I looked around at some of the other status removers, and eventually decided to use Celebi. That meant I couldn't Wish pass, though. This Physically defensive Celebi set beats nearly every water type in OU, including Keldeo, Rotom-W Azumarill, Suicune, Mega Gyarados, even puts up a fight against Manaphy whose Tail Glow + Rain Dance set is 6-0'ing most stall teams out there now.
Heal Bell is there because it's kind of crippling to take a burn or toxic one turn when I'm not expecting it. Recover is pretty obvious, Giga Drain is there to beat up on water types. Perish Song is my team's primary defense against slow set up sweepers, most notably Suicune and Clefable. I skipped Baton Pass because Celebi can actually tank some Pursuits with a physically defensive spread, and even potentially defeat some Tyranitar.

Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Recover
- Discharge
- Ice Beam
- Tri Attack
At this point I kind of needed a generic, catch-all special wall. Hopefully I've let out enough profanities about Chansey that you get my point. Celebi couldn't run that role with 7 weaknesses. I picked a pokemon with a very neutral typing, and very good bulk. Unfortunately Porygon2 shares many of Chansey's weaknesses; any pokemon that goes out of their way to run Knock Off and/or Superpower will catch Porygon2 as a side effect. But Porygon2 actually does damage, so I can still say it's not outclassed yay. Porygon2 checks most special attackers, including Greninja, Landorus, Thundurus, even Timid Charizard Y falls just short of 50% damage on its Fire Blast.

Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Slack Off
- Earthquake
- Stealth Rock
- Roar / Fire Fang
There's been a lot of power creep in Gen 6 with a lot of megas that hit way too hard. Generally the only way to cover some of the stronger ones is to get a specific pokemon that resists its stabs, isn't weak to coverage, etc, because even fully invested bulky walls won't cut it. Well, Hippowdon is the closest you can get to "cutting it", standing up to Megas like Charizard X, Pinsir, and
Fire Fang is the only unusual looking move on this set; it hits Mega Scizor (yet still does surprisingly ass damage), Pinsir, Heracross, Ferrothorn, Balloon Excadrill and maybe Breloom on the switch. But that slot is up for grabs, if you can convince me something else will do better. The only other thing to mention about the set is why I picked Sand Stream over Sand Force; normally I hate the passive damage, but Hippowdon could use it on the opponent since it's Earthquake isn't all that powerful (like that chip damage really counts vs Charizard X), and it beefs up Mega Aerodactyl's special defense though that rarely comes into play; bird spam doesn't really dare come in Hippowdon because they can't break it too easily, while Charizard Y will just take the sand away anyways, meaning I don't get many reasons to switch directly from Hippowdon to Aerodactyl.
Edit: Thanks to ZCorps' suggestion, I have started running Roar over Fire Fang. It's actually pretty useful. It still stops Mega Scizor from setting up to +6 on the team, stops Pinsir and Heracross from sweeping and probably does more net damage to them if I keep rocks up (it does do more to Pinsir, and for Heracross, it probably adds up to more if it switches in on an attack). Also, those baton pass teams.

Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 96 SpD / 160 Spe
Calm Nature
IVs: 0 Atk
- Will-O-Wisp
- Defog
- Roost
- Taunt
Finally, we're nearing the end. I wanted a better hazard remover than Aerodactyl, and Mew did a couple of other things. First, it's always nice to have Will-O-Wisp somewhere on stall, the damage allows me to play passively and still be getting somewhere in terms of wearing out the opponent, and it makes physical attackers literally twice as easy to deal with. Mew adds to this team's onslaught vs physical attackers, and is one of the best answers to Mega Medicham (unfortunately I couldn't fit in an attacking move to break subs). If it needs to, it can take down many hard hitting pokemon with a fast Will-O-Wisp, maybe taking one for the team if I want to cripple mega heracross or something.
The moves are, very ironically, standard for Mew, basically slapping defog onto its stall breaker set. The speed creeps on Adamant Excadrill, who more importantly is 2 points above Jolly Mega Heracross. Physically defensive is only to help with Medicham, otherwise I could use some more special bulk just because the team is already heavy on physical walls. So I can't really make up my mind there.
Anyway, that's it for the team, thanks for reading.
Disclaimers: It's stall. Hope you have a few hours open lol. Also, not all of the opponents are the best, but I included some replays against worse opponents if they happened to show a nice point.
http://replay.pokemonshowdown.com/ou-169874268 DeniSsSs new Baton Pass team falls to Roar.
http://replay.pokemonshowdown.com/ou-169875209 A mediocre opponent, but it shows a few nice things. PDef Celebi's got some real bulk, Mega Aerodactyl can clean up decently, and another time when Hippowdon's Roar pulled through on a Baton Pass.
http://replay.pokemonshowdown.com/ou-169876944 The robot duck does not die. Like ever.
http://replay.pokemonshowdown.com/ou-170099971 A good demonstration of Mega Aerodactyl's and Suicune's abilities to put up some offensive pressure, after Mega Gardevoir squirms its way through my best checks.
http://replay.pokemonshowdown.com/ou-169874268 DeniSsSs new Baton Pass team falls to Roar.
http://replay.pokemonshowdown.com/ou-169875209 A mediocre opponent, but it shows a few nice things. PDef Celebi's got some real bulk, Mega Aerodactyl can clean up decently, and another time when Hippowdon's Roar pulled through on a Baton Pass.
http://replay.pokemonshowdown.com/ou-169876944 The robot duck does not die. Like ever.
http://replay.pokemonshowdown.com/ou-170099971 A good demonstration of Mega Aerodactyl's and Suicune's abilities to put up some offensive pressure, after Mega Gardevoir squirms its way through my best checks.
Aerodactyl @ Aerodactylite
Ability: Pressure
EVs: 248 HP / 144 Def / 60 SpD / 56 Spe
Jolly Nature
- Rock Slide
- Roost
- Ice Fang
- Wing Attack
Suicune @ Leftovers
Ability: Pressure
EVs: 248 HP / 244 Def / 16 Spe
Bold Nature
IVs: 0 Atk
- Scald
- Calm Mind
- Rest
- Sleep Talk
Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
IVs: 0 Atk
- Perish Song
- Giga Drain
- Heal Bell
- Recover
Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Recover
- Discharge
- Ice Beam
- Tri Attack
Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Slack Off
- Earthquake
- Stealth Rock
- Fire Fang
Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 96 SpD / 160 Spe
Calm Nature
IVs: 0 Atk
- Will-O-Wisp
- Defog
- Roost
- Taunt
Ability: Pressure
EVs: 248 HP / 144 Def / 60 SpD / 56 Spe
Jolly Nature
- Rock Slide
- Roost
- Ice Fang
- Wing Attack
Suicune @ Leftovers
Ability: Pressure
EVs: 248 HP / 244 Def / 16 Spe
Bold Nature
IVs: 0 Atk
- Scald
- Calm Mind
- Rest
- Sleep Talk
Celebi @ Leftovers
Ability: Natural Cure
EVs: 252 HP / 252 Def / 4 Spe
Bold Nature
IVs: 0 Atk
- Perish Song
- Giga Drain
- Heal Bell
- Recover
Porygon2 @ Eviolite
Ability: Trace
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Recover
- Discharge
- Ice Beam
- Tri Attack
Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Slack Off
- Earthquake
- Stealth Rock
- Fire Fang
Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 96 SpD / 160 Spe
Calm Nature
IVs: 0 Atk
- Will-O-Wisp
- Defog
- Roost
- Taunt
A lot of special attackers, especially that Taunt/SpA Boost + Focus Blast combination you'll see sometimes on things like Mega Gardevoir, Mega Alakazam, Gengar, and Thundurus. They rip through Porygon2, and tend to proceed on to the rest of the team.
Mega Heracross. Hippowdon actually avoids the pin missile 2HKO nearly the all time! Unfortunately, passive damage ruins that and it's set up bait. Thankfully it can't ever 6-0, because Mega Aerodcatyl's Wing is in the way.
Manaphy. Well, at least I have celebi, and Porygon2 can also take a +3 hit and fish for Discharge hax.
Dragon Spam: No resistances is kind of painful, while I usually find a way to bulk through them, things like SD Outrage Charizard X or LO Outrage Kyurem-B hurt hard.
Mega Venusaur: Mega Aerodactyl is the only member who can kill it fast but can't switch in all day. The way it can spread poison and Leech Seed gets really irritating. Ferrothorn is similarly difficult to kill but not as threatening back.
To be continued.
Mega Heracross. Hippowdon actually avoids the pin missile 2HKO nearly the all time! Unfortunately, passive damage ruins that and it's set up bait. Thankfully it can't ever 6-0, because Mega Aerodcatyl's Wing is in the way.
Manaphy. Well, at least I have celebi, and Porygon2 can also take a +3 hit and fish for Discharge hax.
Dragon Spam: No resistances is kind of painful, while I usually find a way to bulk through them, things like SD Outrage Charizard X or LO Outrage Kyurem-B hurt hard.
Mega Venusaur: Mega Aerodactyl is the only member who can kill it fast but can't switch in all day. The way it can spread poison and Leech Seed gets really irritating. Ferrothorn is similarly difficult to kill but not as threatening back.
To be continued.
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