So, this is my second OU team so far, and rather than going with simple offense with 1 wall, I've decided to try a stall team. Despite the name, it wasn't built around Forretress, although he is still a key player. This runs as a Pseudo-Sand team; that is, it enjoys Sandstorms when they're available, but doesn't necessarily require it. 3/6 Pokemon are immune to sandstorm damage, and along with the healthy presence of entry hazards and some form of end-turn healing on all non-immune Poke's, sandstorm can help whittle away the other team during the stall.
In any case, Meet the Team:
This might surprise you, but again, Forretress was not the first choice on a team called Team Forretress (the name actually came after I started assigning Poke's TF2 names, and a noticed I had Forretress on there anyway). I just wanted to try Zapdos out, so this team was to see what I could pull with Zapdos.
Next I chose my lead, which is probably something you should start with, but oh well. Metagross (almost) guarantees Stealth Rock, which is something I value heavily. I also love exploding leads, and a priority attack is just icing on the cake.
Next came the muscle, and TTar is as reliable as it gets. Sandstorm would work well with Metagross, and okay with Zapdos. Which TTar set I picked came later, but I knew I wanted this guy on my side.
This was starting to look like a stall team, with the 2 hitters being bulkier choices and TTar's sandstorm, so Forretress made an excellent next pick. Extreme physical bulk, Rapid Spin to clear the way for Zapdos, the ability to drop Toxic Spikes, and immunity to Sandstorm made him the clear choice. His synergy with Zapdos doesn't stop at Rapid Spin; fliers that avoid Toxic Spikes are almost all weak to STAB Tbolt.
Vaporeon is an easy choice with its access to Wish, as Forretress can't heal itself and TTar likes to get itself hurt. Not to mention, Metagross playing Lead can easily come back in without its only option being explosion, if it has Wish support. Also, I've seen Heatran run through my teams too many times because I'm not prepared to take STAB fire attacks in OU, and this team is no exception. Zapdos will be able to wall a few attacks with his Special bulk, and Tyranitar at full health can take him out easily, but Zapdos won't be able to dent Heatran in return and TTar can easily be taken out before Heatran rears its ugly head. Vaporeon brings STAB surf and massive Special Bulk to counter Heatran.
Breloom finishes the team with his powerful STABs and ability to quickly regenerate his health behind a substitute. He'll serve as a great revenger for Steel types that both threaten TTar and are immune to Forretress' Toxic Spikes, since he carries both Spore and Focus Punch.
Then I threw half of that in the garbage and came up with a brand spankin' new team:
In depth:
"Thanks for standin' still, wanker!"
Swampert @Leftovers - "Sniper"
~Torrent~
Stealth Rock
Earthquake
Ice Beam
Roar
Relaxed
240 HP
216 Def
52 Spd
In any case, Meet the Team:






Building Process:
*Note*
Over half of this team was ultimately changed for other pokemon so you'll more than likely want to skip this section. The final team roster is posted just above this and at the bottom of this section. I just kept this part so people can keep up to see what about the team the comments below were referring to.
*Note*
Over half of this team was ultimately changed for other pokemon so you'll more than likely want to skip this section. The final team roster is posted just above this and at the bottom of this section. I just kept this part so people can keep up to see what about the team the comments below were referring to.

This might surprise you, but again, Forretress was not the first choice on a team called Team Forretress (the name actually came after I started assigning Poke's TF2 names, and a noticed I had Forretress on there anyway). I just wanted to try Zapdos out, so this team was to see what I could pull with Zapdos.


Next I chose my lead, which is probably something you should start with, but oh well. Metagross (almost) guarantees Stealth Rock, which is something I value heavily. I also love exploding leads, and a priority attack is just icing on the cake.



Next came the muscle, and TTar is as reliable as it gets. Sandstorm would work well with Metagross, and okay with Zapdos. Which TTar set I picked came later, but I knew I wanted this guy on my side.




This was starting to look like a stall team, with the 2 hitters being bulkier choices and TTar's sandstorm, so Forretress made an excellent next pick. Extreme physical bulk, Rapid Spin to clear the way for Zapdos, the ability to drop Toxic Spikes, and immunity to Sandstorm made him the clear choice. His synergy with Zapdos doesn't stop at Rapid Spin; fliers that avoid Toxic Spikes are almost all weak to STAB Tbolt.





Vaporeon is an easy choice with its access to Wish, as Forretress can't heal itself and TTar likes to get itself hurt. Not to mention, Metagross playing Lead can easily come back in without its only option being explosion, if it has Wish support. Also, I've seen Heatran run through my teams too many times because I'm not prepared to take STAB fire attacks in OU, and this team is no exception. Zapdos will be able to wall a few attacks with his Special bulk, and Tyranitar at full health can take him out easily, but Zapdos won't be able to dent Heatran in return and TTar can easily be taken out before Heatran rears its ugly head. Vaporeon brings STAB surf and massive Special Bulk to counter Heatran.






Breloom finishes the team with his powerful STABs and ability to quickly regenerate his health behind a substitute. He'll serve as a great revenger for Steel types that both threaten TTar and are immune to Forretress' Toxic Spikes, since he carries both Spore and Focus Punch.
Then I threw half of that in the garbage and came up with a brand spankin' new team:






In depth:

"Thanks for standin' still, wanker!"
Swampert @Leftovers - "Sniper"
~Torrent~
Stealth Rock
Earthquake
Ice Beam
Roar
Relaxed
240 HP
216 Def
52 Spd
Metagross was originally leading my team, but considering the already-abundant presence of Steel-Types and weak spots against Heatran and DD Dragonite on this team, Swampert seemed like a perfect substitute. He almost guarantees Stealth Rock, like Metagross, and may not hit as hard, but can easily come in and wall during midgame. Ice Beam earns him the name Sniper by shooting Dragonite, Flygon, and Gliscor out of the sky, and Earthquake checks Heatran and then some. Roar is a great addition to this team with all of its entry hazards and serves to pHaze the other team. Someone suggested moving Forretress to the front, but considering the constant threat of LeadTran, as well as other Fire-attack-carrying leads (Infernape, Azelf, Dragonite, the occasional Fire Punch on Jirachi, etc), that didn't seem like a great place to put him. Swampert fills this job perfectly.
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"I told ya, don't touch that darn thing!"
Forretress @Shed Shell - "Engineer"
~Sturdy~
Spikes
Toxic Spikes
Rapid Spin
Payback
Relaxed
252 HP
112 Atk
144 SpD

"I told ya, don't touch that darn thing!"
Forretress @Shed Shell - "Engineer"
~Sturdy~
Spikes
Toxic Spikes
Rapid Spin
Payback
Relaxed
252 HP
112 Atk
144 SpD
Forretress plays a key role here as a physical wall, entry hazard remover, and Toxic Spiker. He's looking to come in relatively early and start setting up Spikes/Toxic Spikes, as that is an extremely important element of the stall. Aside from being able to stall just by being there, due to his monstrous defense, he also serves to counter other Toxic Spike users, both by being immune and by carrying Rapid Spin. Payback was taken over Explosion or Gyro Ball to threaten Spin Blockers. Gengar is the only one is directly threatened by Payback from Forretress, but it is still capable of denting the Rotom-formes and Dusknoir. However, Forretress wouldn't be caught sticking around to try and handle Dusknoir or Rotom-H himself, since they both potentially carry Fire Attacks.
=========================================
"Vould you like a second opinion? You are also ugly!"
Vaporeon @Leftovers - "Medic"
~Water Absorb~
Wish
Protect
Surf
Heal Bell
Bold
216 Def
232 SpD
60 SpA

"Vould you like a second opinion? You are also ugly!"
Vaporeon @Leftovers - "Medic"
~Water Absorb~
Wish
Protect
Surf
Heal Bell
Bold
216 Def
232 SpD
60 SpA
Vaporeon serves a very important function on this team as a Wish healer (also earning him his nickname), because my other Walls, Forretress and Swampert, cannot heal themselves. Heal Bell is useful to prevent Toxic from whittling down my walls, Protect is there to stall, self-Wish-heal, give another turn of leftovers, and maybe block an explosion.
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"If God had wanted you to live, he would not have created me!"
Rotom-H @Leftovers - "Soldier"
~Levitate~
Substitute
Pain Split
Will-o-Wisp
Thunderbolt
Timid
252 HP
64 Def
192 Spd

"If God had wanted you to live, he would not have created me!"
Rotom-H @Leftovers - "Soldier"
~Levitate~
Substitute
Pain Split
Will-o-Wisp
Thunderbolt
Timid
252 HP
64 Def
192 Spd
Zapdos originally filled this slot on the team, but Rotom-W fills a much more important role: Spin Blocking. With Stealth Rock and both kinds of Spikes playing crucial roles on the team, a Spin Blocker is absolutely required. Sub-Split is a fantastic choice for a stall team and Will-o-Wisp can burn any fliers, levitators, or steel-types who aren't affected by Toxic Spikes. H-form bluffs Overheat and can potentially bait Water types which will only switch in to get hit by Tbolt.
=========================================
"Vat vas dat, Sandvich? Kill zem all? Good idea! Hahaha!"
Hippowdon @Leftovers - "Heavy"
~Sand Stream~
Stockpile
Slack Off
Earthquake
Stone Edge / Ice Fang / Roar
Impish
176 HP
84 Def
248 SpD

"Vat vas dat, Sandvich? Kill zem all? Good idea! Hahaha!"
Hippowdon @Leftovers - "Heavy"
~Sand Stream~
Stockpile
Slack Off
Earthquake
Stone Edge / Ice Fang / Roar
Impish
176 HP
84 Def
248 SpD
This slot was originally dedicated to a Breloom for some extra offensive power, but adding Hippowdon instead makes this team much more stall-based, as well as solidifying its status as a sand team. The Stockpile set was taken because if Hippo manages to pull off 3 or even 2 boosts, he becomes incredibly difficult to KO when Slack off is taken into account. Add entry hazards to the mix and you have yourself a staller, especially if the pokemon being stalled is not immune to Toxic Spikes. Earthquake is a basic STAB and stops many threats this team originally had. I'm still debating the last slot. Stone Edge hits Fliers that are immune to Earthquake and does its best to make up for the fact that Tyranitar isn't carrying a STAB Rock-type move. This set could run into a lot of counters that resist the Earthquake/Stone Edge combo, however, but giving him Ice Fang instead would give him the exact same coverage as Swampert, which isn't necessarily a good thing. Also, Ice Fang is only a BP 65 move and will really only threaten Pokes that have a double Ice weakness. Roar is useful but Swampert is also already taking that role, and I'm not really sure any team needs 2 pHazers. On the other hand, Roar could force out pokemon that are immune to Earthquake and force them to continue taking Stealth Rock damage when they switch back in. Roar is a great solution to Dragonite due to his Rock weakness, but it's only so-so against Gliscor and Skarmory and terrible against Flygon and Bronzong.
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"Ohhhh, they're gon'ta hafta glue you back together...IN HELL."
Tyranitar @Expert Belt - "Demoman"
~Sand Stream~
Dark Pulse
Superpower
Flamethrower
Thunderbolt / Ice Beam
Naive
48 Atk
252 SpA
208 Spe

"Ohhhh, they're gon'ta hafta glue you back together...IN HELL."
Tyranitar @Expert Belt - "Demoman"
~Sand Stream~
Dark Pulse
Superpower
Flamethrower
Thunderbolt / Ice Beam
Naive
48 Atk
252 SpA
208 Spe
Tyranitar may not be a wall due to his "weak-to-absolutely-everything" typing, but he's got impressive bulk nonetheless and serves as an important counter-stall breaker on this team. Mixtar was chosen for its type coverage and is especially important in breaking Blissey and opposing TTar with Superpower. Flamethrower is important for hitting Levitating and Flying Steel-Types, as well as the constant threat of Scizor (who normally laughs at TTar) and opposing Forretress. Thunderbolt is an option to threaten Gyarados and other Water Types, although it's mostly just Gyarados. Ice beam is the other choice to manage the common threats mentioned earlier that are weak to Ice, but each is already used on the team - Thunderbolt on Rotom and Ice Beam on Swampert. If I ultimately decide on Ice Fang for Hippowdon, Thunderbolt will be the easy choice so I can keep 2 each of both Electric and Ice moves on the team.
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Special thanks (for input):
Lucien Lachance
The Legendkiller
Raikaria
apologies
DankDawson
teatime1008
Lucien Lachance
The Legendkiller
Raikaria
apologies
DankDawson
teatime1008