I've always preferred playing stall, but the existence of many powerful OU threats have always discouraged from running stall in the metagame. However, the Defense of the Titans thread gave me some ideas, and definitely proved stall was viable. So I went to the lab and came up with this team, which although is quite generic, works very well. I have a 68-8 record with this team and at the time of this writing #35 on PS OU current ladder.
Politoed @ Leftovers
Trait: Drizzle
EVs: 24 Spd / 252 HP / 232 Def
Bold Nature
IVs: 0 Atk
- Scald
- Protect
- Toxic
- Perish Song
I feel that without running my own weather, running stall is a major uphill battle. For example, it's incredibly difficult for stall to beat Growth Venusaur in the sun, or hard to stall out a Sand team when I'm the one taking passive damage every turn. Politoed remedies this, and also gives a lot of utility. The most important moves here are definitely Toxic and Perish Song. Toxic has allowed me to eventually take down many specially defensive Rotom-W on the switch, which otherwise is very difficult for my team to take down. Perish Song has taken out the last member of my opponent's team multiple times, and has stopped many setup sweepers from sweeping me. Overall, I don't think there's anything to change on Politoed.
The 0 ATK IV is most minimize the damage I take from confusion, and is also used in all my members without physical attacks.
Tentacruel @ Black Sludge
Trait: Rain Dish
EVs: 16 Spd / 252 HP / 240 Def
Bold Nature
IVs: 0 Atk
- Scald
- Rapid Spin
- Protect
- Toxic Spikes
Rain Dish is an amazing ability, and its ability to absorb Toxic Spikes by coming in, and to spin away hazards is mandatory for stall. Tentacruel is an answer to most Infernape and Terrakion. Although this is a very generic set, it's also very effective. I opted to run Toxic Spikes over Toxic because even though I can't beat Jellicent 1 on 1, Toxic Spikes are invaluable for easily beating many teams that didn't include a way to handle them, and I think that gave me more wins overall than being able to beat Jellicent. I can always poison Jellicent with Politoed anyway. The only downside to this set is that opposing Toxicroak and Sub DD Gyarados beats me for free, but I think I would need to sacrifice too much to beat those Pokemon.
Skarmory @ Leftovers
Trait: Sturdy
EVs: 252 HP / 252 Def / 4 Spd
Impish Nature
- Brave Bird
- Spikes
- Roost
- Whirlwind
An MVP of the team, Skarmory is my answer to Garchomp and other physical dragons. In the rain, there's absolutely nothing they can do, which allows me to set up some Spikes. The only major physical threats that I don't hard counter are Gyarados if it has nabbed a Dragon Dance before hand and flinches me with Waterfall, Infernape with Thunder Punch, Kyurem-B and Choice Band Terrakion. Skarmory is also very effective against Baton Pass, and in combination with Politoed, actually makes it not difficult to win.
Tornadus-Therian (M) @ Life Orb
Trait: Regenerator
EVs: 252 Spd / 4 HP / 252 SAtk
Timid Nature
IVs: 0 Atk / 30 Def
- Hurricane
- Focus Blast
- U-turn
- Taunt
Tornadus-T is the last member of the team added, and I tried numerous defensive players over it first, but Tornadus-T has been the best. It prevents Deoxys-D from setting up stuff, beats Ferrothorn, Conkeldurr and Magnezone which would otherwise beat my team for free. Overall, Tornadus-T is just too good not to use on a Rain team because unless my opponent runs specially defensive Jirachi or Rotom-W, something is getting mauled by Hurricane. I run Focus Blast over Superpower because I can just Taunt Chansey anyway if it switches in.
Jirachi @ Leftovers
Trait: Serene Grace
EVs: 252 SDef / 252 HP / 4 Def
Careful Nature
- Iron Head
- Body Slam
- Wish
- Protect
As mentioned earlier, not running specially defensive Jirachi or Rotom-W would make me very susceptible to Tornadus-T, so here's specially defensive Jirachi. It's the most generic set available, but absolutely necessary to handle stuff like Tornadus-T and Latios. Along with Skarmory, double steel types gives me very strong defensive capabilities that beats most Dragons. With rain up, pretty much only strong Earthquakes are going to do much, in which case I get a free switch to Skarmory or Tornadus-T.
Chansey (F) @ Eviolite
Trait: Natural Cure
EVs: 252 Def / 252 SDef / 4 HP
Calm Nature
IVs: 0 Atk
- Seismic Toss
- Heal Bell
- Softboiled
- Stealth Rock
Completing the SkarmBliss(Chansey) core, not a lot of threats can wall break through the duo. Anything that can get through are usually walled by Jirachi and Tentacruel, and the redundancy is countering abilities allow me to keep the health up for each of them. Seismic Toss for damage, and Heal Bell and Softboiled for recovery. I feel the rest of team can easily inflict status, so I run Stealth Rock, which I can get up pretty easily considering Chansey gets a lot of switch-in opportunities.
Threats:
I'm not going to go over all the OU threats, but am going to mention a few that really gives me trouble here. However, for most of these, I just accept that it's going to be really difficult to beat them because it's impossible for me to counter everything.
1. Specially Defensive Rotom-W: very hard to take down. Pain Split means I can't take it down with Chansey, and Will-O-Wisp let's it beat Jirachi. All my other members are weak to Volt Switch. What I usually do is to get Stealth Rock up, Toxic it with Politoed then sacrifice Chansey to take it down. I don't think I can really counter it unless I run Celebi, but I feel that the other members play roles that are more important, and I have beaten many specially defensive Rotom-W in the past so it's definitely possible.
2. Breloom: I hate seeing this guy in any team I play against. It outspeeds most of my members and then just hammers me with damage. I usually switch to Politoed to absorb with Spore, then to Skarmory to force it out. Fortunately, not many people have predicted the switch to Politoed and have in fact wasted their Spore on it.
3. SubDD Gyarados: This thing is very difficult to beat for my team because anything that can break its sub on my team is damaged hard by Waterfall, and anything that can take a Waterfall can't break the sub. I've only beaten it a few times through bad playing on my opponent's part. Skarmory can take a hit once, but will need to be at full health all the time to counter Gyarados. I usually set up Stealth Rock ASAP when I see any Gyarados in team preview.
4. Kyurum-W: incredibly difficult to take down, I usually try to set up Toxic Spikes to beat it through passive damage. I almost always sacrifice 2 to 3 members before it dies though.
5. Magnezone: It traps and KOs Skarmory and Jirachi, which are probably very important if my opponent decides to run Magenzone. The Scarf version can't really do much to Jirachi though, but the Substitute set is very dangerous. I usually predict the switch and double switch to Tornadus-T to maul something with Focus Blast.
6. Sub Calm Mind Jirachi: I can't break it's Sub and it will OHKOs everything on my team easily except for Chansey after a single Calm Mind. This is pretty much auto-lose when I ever encounter one except when my opponent is bad. Luckily, this set is uncommon so I just accept the loss whenever I see it.

Politoed @ Leftovers
Trait: Drizzle
EVs: 24 Spd / 252 HP / 232 Def
Bold Nature
IVs: 0 Atk
- Scald
- Protect
- Toxic
- Perish Song
I feel that without running my own weather, running stall is a major uphill battle. For example, it's incredibly difficult for stall to beat Growth Venusaur in the sun, or hard to stall out a Sand team when I'm the one taking passive damage every turn. Politoed remedies this, and also gives a lot of utility. The most important moves here are definitely Toxic and Perish Song. Toxic has allowed me to eventually take down many specially defensive Rotom-W on the switch, which otherwise is very difficult for my team to take down. Perish Song has taken out the last member of my opponent's team multiple times, and has stopped many setup sweepers from sweeping me. Overall, I don't think there's anything to change on Politoed.
The 0 ATK IV is most minimize the damage I take from confusion, and is also used in all my members without physical attacks.

Tentacruel @ Black Sludge
Trait: Rain Dish
EVs: 16 Spd / 252 HP / 240 Def
Bold Nature
IVs: 0 Atk
- Scald
- Rapid Spin
- Protect
- Toxic Spikes
Rain Dish is an amazing ability, and its ability to absorb Toxic Spikes by coming in, and to spin away hazards is mandatory for stall. Tentacruel is an answer to most Infernape and Terrakion. Although this is a very generic set, it's also very effective. I opted to run Toxic Spikes over Toxic because even though I can't beat Jellicent 1 on 1, Toxic Spikes are invaluable for easily beating many teams that didn't include a way to handle them, and I think that gave me more wins overall than being able to beat Jellicent. I can always poison Jellicent with Politoed anyway. The only downside to this set is that opposing Toxicroak and Sub DD Gyarados beats me for free, but I think I would need to sacrifice too much to beat those Pokemon.

Skarmory @ Leftovers
Trait: Sturdy
EVs: 252 HP / 252 Def / 4 Spd
Impish Nature
- Brave Bird
- Spikes
- Roost
- Whirlwind
An MVP of the team, Skarmory is my answer to Garchomp and other physical dragons. In the rain, there's absolutely nothing they can do, which allows me to set up some Spikes. The only major physical threats that I don't hard counter are Gyarados if it has nabbed a Dragon Dance before hand and flinches me with Waterfall, Infernape with Thunder Punch, Kyurem-B and Choice Band Terrakion. Skarmory is also very effective against Baton Pass, and in combination with Politoed, actually makes it not difficult to win.

Tornadus-Therian (M) @ Life Orb
Trait: Regenerator
EVs: 252 Spd / 4 HP / 252 SAtk
Timid Nature
IVs: 0 Atk / 30 Def
- Hurricane
- Focus Blast
- U-turn
- Taunt
Tornadus-T is the last member of the team added, and I tried numerous defensive players over it first, but Tornadus-T has been the best. It prevents Deoxys-D from setting up stuff, beats Ferrothorn, Conkeldurr and Magnezone which would otherwise beat my team for free. Overall, Tornadus-T is just too good not to use on a Rain team because unless my opponent runs specially defensive Jirachi or Rotom-W, something is getting mauled by Hurricane. I run Focus Blast over Superpower because I can just Taunt Chansey anyway if it switches in.

Jirachi @ Leftovers
Trait: Serene Grace
EVs: 252 SDef / 252 HP / 4 Def
Careful Nature
- Iron Head
- Body Slam
- Wish
- Protect
As mentioned earlier, not running specially defensive Jirachi or Rotom-W would make me very susceptible to Tornadus-T, so here's specially defensive Jirachi. It's the most generic set available, but absolutely necessary to handle stuff like Tornadus-T and Latios. Along with Skarmory, double steel types gives me very strong defensive capabilities that beats most Dragons. With rain up, pretty much only strong Earthquakes are going to do much, in which case I get a free switch to Skarmory or Tornadus-T.

Chansey (F) @ Eviolite
Trait: Natural Cure
EVs: 252 Def / 252 SDef / 4 HP
Calm Nature
IVs: 0 Atk
- Seismic Toss
- Heal Bell
- Softboiled
- Stealth Rock
Completing the SkarmBliss(Chansey) core, not a lot of threats can wall break through the duo. Anything that can get through are usually walled by Jirachi and Tentacruel, and the redundancy is countering abilities allow me to keep the health up for each of them. Seismic Toss for damage, and Heal Bell and Softboiled for recovery. I feel the rest of team can easily inflict status, so I run Stealth Rock, which I can get up pretty easily considering Chansey gets a lot of switch-in opportunities.
Threats:
I'm not going to go over all the OU threats, but am going to mention a few that really gives me trouble here. However, for most of these, I just accept that it's going to be really difficult to beat them because it's impossible for me to counter everything.
1. Specially Defensive Rotom-W: very hard to take down. Pain Split means I can't take it down with Chansey, and Will-O-Wisp let's it beat Jirachi. All my other members are weak to Volt Switch. What I usually do is to get Stealth Rock up, Toxic it with Politoed then sacrifice Chansey to take it down. I don't think I can really counter it unless I run Celebi, but I feel that the other members play roles that are more important, and I have beaten many specially defensive Rotom-W in the past so it's definitely possible.
2. Breloom: I hate seeing this guy in any team I play against. It outspeeds most of my members and then just hammers me with damage. I usually switch to Politoed to absorb with Spore, then to Skarmory to force it out. Fortunately, not many people have predicted the switch to Politoed and have in fact wasted their Spore on it.
3. SubDD Gyarados: This thing is very difficult to beat for my team because anything that can break its sub on my team is damaged hard by Waterfall, and anything that can take a Waterfall can't break the sub. I've only beaten it a few times through bad playing on my opponent's part. Skarmory can take a hit once, but will need to be at full health all the time to counter Gyarados. I usually set up Stealth Rock ASAP when I see any Gyarados in team preview.
4. Kyurum-W: incredibly difficult to take down, I usually try to set up Toxic Spikes to beat it through passive damage. I almost always sacrifice 2 to 3 members before it dies though.
5. Magnezone: It traps and KOs Skarmory and Jirachi, which are probably very important if my opponent decides to run Magenzone. The Scarf version can't really do much to Jirachi though, but the Substitute set is very dangerous. I usually predict the switch and double switch to Tornadus-T to maul something with Focus Blast.
6. Sub Calm Mind Jirachi: I can't break it's Sub and it will OHKOs everything on my team easily except for Chansey after a single Calm Mind. This is pretty much auto-lose when I ever encounter one except when my opponent is bad. Luckily, this set is uncommon so I just accept the loss whenever I see it.