Tropicalia
Intro
Sunny Day teams are usually underrated in OU metagame. For many people Sunny Day is the worst of the weather effects and most of teams based on sun are considered gimmicks. Most of people prefer using this in UU where there are no auto-weather pokemons to mess with the sun and Solarbeam can work without the fear off losing the free-turn of charge in the sandstorm or hail. But Pokemons like Tangrowth and Infernape can be very effectives sun abusers since they can kill all the auto-weather Pokemons in OU with Fire and Grass attacks. I've been trying to make a good Sunny Day team for weeks and I think I finally got one that works well in OU. When I was laddering in Shoddy Battle I got pretty good results with this team, winning about 80% of the matches. The name of the team is a reference to a brazilian cultural movement in the 60s and 70s.
Changes are in Bold
The Team
Lead
Azelf @ Heat Rock
Ability: Levitate
EVs: 4 HP/252 Atk/252 Spd
Naive nature (+Spd, -SDef)
- Stealth Rock
- Sunny Day
- Explosion
- U-Turn
Having a reliable way of setting Stealth Rock is very important to this team, and Azelf can do this very wel . Stealth Rock helps me to deal with major threats of my team like Salamence and Gyarados, and turn many 2HKOs into OHKOs. If Azelf remain untouched after setting Stealth Rock I can use Sunny Day and Explode. U-Turn helps agaisnt Aerodactyls lead, if it use Taunt, I just U-Turn to Donhphan and kill with Ice Shard. I don't use Taunt because Azelf is too frail to use Taunt-Stealth Rock-Sunny Day in the beggining of the match. Usually if my opponent uses Stealth Rock I have a chance to use both Stealth Rock and Sunny Day and have a chance to explode Azelf.
Sunny Day users
Rotom-h @ Heat Rock
Ability: Levitate
EVs: 252 HP/170 Def/88 Spd
Modest nature (+SAtk, -Atk)
- Sunny Day
- HP Figthing
-Thunderbolt
-Will -o - Wisp
1st Sunny Day user and rapid spin blocker. Most of time Azelf won't have many chances to set Stealth Rocks twice, so Rotom-h stop rapid spinners. Rotom-h is an excellent spin blocker for this team, Starmie won´t cause much damage to him once Sunny Day is set as water attacks have their powers halved under the sun and he can OHKO her with Thunderbolt, same for Tentacruel.
EDIT: I replaced Overheat by HP Figthing. The reason for this is to have a better way to deal with Tyranitar trying to kill Rotom-h with Pursuit. With Sunny Day, Tyranitar loses its SpDef Boost under Sandstorm and HP Figthing can easily 2HKO it Most Tyranitars with Pursuit are Choice Banded. With Will-o-Wisp Tyranitar's Pursuit won't deal much damage against Rotom-h if I don't switch. Most of time Tyranitar will switch in the same turn I use Sunny Day and try to use Pursuit to kill. Staying and burning Tyranitar, it won't be able to 3HKO Rotom-h and I can 2HKO it with HP fighting. With this set Rotom-h can set-up the Sun without worrying much with auto-weather Pokemons.
Heatran (M) @ Shuca Berry
Ability: Flash Fire
EVs: 164 Sped/252 SAtk/94HP
Modest nature (+SAtk, -Atk)
- Earth Power
- Solar Beam
- Flamethrower
- Sunny Day
I changed my second sunny day user to Heatran, I created this set to make a better use of the sun on my team, with this set I can deal with many commons switch-ins on Heatran. These are some commons pokemons that switch in Heatran:
-Bulky waters
-Tyranitar
-Blissey
-Thick Fat Pokemons (Snorlax/Haryama)
-Heatran
-Dragons
After setting the sun Heatran can abuse the sunligth in 3 ways:
1-Boosting his STAB attack with the sun
2-Solar Beam can be used in one turn
3-Water attacks have their power halved.
If my opponent switch into a bulky water, Heatran can take surf and kill with Solar Beam. If Tyranitar switchs in the same turn I use Sunny Day it loses its SpDef boost and can be KOed by SolarBeam too. If my opponent brings Heatran, Shuca Berry halves the power of Earth Power and my Heatran can OHKO back with Earth Power. Blissey forces me to switch to Donphan and Thick Fat pokemons forces me to switch to Rotom-h. Dragons force me to switch to Donphan.
Donphan @ Choice Band
Ability: Sturdy
EVs: 252 HP/252 Atk
Adamant nature (+Atk, -SAtk)
- Ice Shard
- Earthquake
- Thunder Fang
- Assurance
This is my main counter to two main threats to my team: Tyranitar and Salamence. Initially, I used Donphan as a Sunny Day user. While it could counter Tyranitar and Salamence very well, the lack of attacking power couldn't help me much. I decided to put a Choice Band on Donphan and see what happens, and it surprised me a lot. Donphan can take a lot of beating and hit back with powerful blows. Ice Shard is for countering dragons such as Flygon and DD Salamence that otherwise would give me a lot of trouble. Earthquake has a lot of power with Choice Band and many people are caught by surprise expecting a defensive Donphan to use as a set-up fodder. Assurance hits ghost in the switch expecting to block Rapid Spin, also it OHKO Latias on the switch. With Thunder Fang I can use Donphan as a Gyarados counter under the sun, while it sounds crazy, under the sun Waterfall has its power halved and Donphan can take a +1Waterfall and KO Gyarados with Thunder Fang.
Sweepers
Tangrowth @ Life Orb
Ability: Chlorophyll
EVs: 200 Atk /230 Spd/ 80 SAtk
Naive nature (+SAtk, -SDef)
- Power Whip
- Hidden Power (Fire)
-Earthquake
-Sleep Powder
This is my main sweeper, Tangrowth is the best user of Chlorophyll. With Naive nature I outspeed Choice-Scarfed Heatran and OHKO with Earthquake. Tyranitar, Abomasnow and Hippowdon are OHKO by Tangrowth Power Whip or HP Fire (in case of Abomasnow), so even if I lose the Chlorophyll boost my opponent will lose an auto-weather pokemon. Sleep Powder puts to sleep anything that Tangrowth cannot kill. His good defense allows him to sweep without worrying much about priority moves.
Infernape @ Life Orb
Ability: Blaze
EVs: 250 SAtk /252 Spd/ 8 Atk
Naive nature (+SAtk, -SDef)
- Close Combat
- Vacuum Wave
-Flamethrower
-Grass Knot
Infernape is an excellent late-game sweeper. If my opponent doesn't have anything faster, Infernape can sweep a entire team with his excellent coverage and having a STAB move boosted by the sun.
With Blaze and Sunny Day activated, Infernape OHKO Cresselia with Flamethrower . Grass Knot is for water-types. Close Combat deals with Blissey, Snorlax and non-scarfed Heatran. Even without the sun he can sweep unprepared teams. Vacuum Wave aids my weakness agaisnt SubPetaya Empoleon and is useful agaisnt Lucario.
That's it. Please rate it.
Sorry if there is any grammar mistake.
Intro
Sunny Day teams are usually underrated in OU metagame. For many people Sunny Day is the worst of the weather effects and most of teams based on sun are considered gimmicks. Most of people prefer using this in UU where there are no auto-weather pokemons to mess with the sun and Solarbeam can work without the fear off losing the free-turn of charge in the sandstorm or hail. But Pokemons like Tangrowth and Infernape can be very effectives sun abusers since they can kill all the auto-weather Pokemons in OU with Fire and Grass attacks. I've been trying to make a good Sunny Day team for weeks and I think I finally got one that works well in OU. When I was laddering in Shoddy Battle I got pretty good results with this team, winning about 80% of the matches. The name of the team is a reference to a brazilian cultural movement in the 60s and 70s.
Changes are in Bold
The Team






Lead

Azelf @ Heat Rock
Ability: Levitate
EVs: 4 HP/252 Atk/252 Spd
Naive nature (+Spd, -SDef)
- Stealth Rock
- Sunny Day
- Explosion
- U-Turn
Having a reliable way of setting Stealth Rock is very important to this team, and Azelf can do this very wel . Stealth Rock helps me to deal with major threats of my team like Salamence and Gyarados, and turn many 2HKOs into OHKOs. If Azelf remain untouched after setting Stealth Rock I can use Sunny Day and Explode. U-Turn helps agaisnt Aerodactyls lead, if it use Taunt, I just U-Turn to Donhphan and kill with Ice Shard. I don't use Taunt because Azelf is too frail to use Taunt-Stealth Rock-Sunny Day in the beggining of the match. Usually if my opponent uses Stealth Rock I have a chance to use both Stealth Rock and Sunny Day and have a chance to explode Azelf.
Sunny Day users

Rotom-h @ Heat Rock
Ability: Levitate
EVs: 252 HP/170 Def/88 Spd
Modest nature (+SAtk, -Atk)
- Sunny Day
- HP Figthing
-Thunderbolt
-Will -o - Wisp
1st Sunny Day user and rapid spin blocker. Most of time Azelf won't have many chances to set Stealth Rocks twice, so Rotom-h stop rapid spinners. Rotom-h is an excellent spin blocker for this team, Starmie won´t cause much damage to him once Sunny Day is set as water attacks have their powers halved under the sun and he can OHKO her with Thunderbolt, same for Tentacruel.
EDIT: I replaced Overheat by HP Figthing. The reason for this is to have a better way to deal with Tyranitar trying to kill Rotom-h with Pursuit. With Sunny Day, Tyranitar loses its SpDef Boost under Sandstorm and HP Figthing can easily 2HKO it Most Tyranitars with Pursuit are Choice Banded. With Will-o-Wisp Tyranitar's Pursuit won't deal much damage against Rotom-h if I don't switch. Most of time Tyranitar will switch in the same turn I use Sunny Day and try to use Pursuit to kill. Staying and burning Tyranitar, it won't be able to 3HKO Rotom-h and I can 2HKO it with HP fighting. With this set Rotom-h can set-up the Sun without worrying much with auto-weather Pokemons.

Heatran (M) @ Shuca Berry
Ability: Flash Fire
EVs: 164 Sped/252 SAtk/94HP
Modest nature (+SAtk, -Atk)
- Earth Power
- Solar Beam
- Flamethrower
- Sunny Day
I changed my second sunny day user to Heatran, I created this set to make a better use of the sun on my team, with this set I can deal with many commons switch-ins on Heatran. These are some commons pokemons that switch in Heatran:
-Bulky waters
-Tyranitar
-Blissey
-Thick Fat Pokemons (Snorlax/Haryama)
-Heatran
-Dragons
After setting the sun Heatran can abuse the sunligth in 3 ways:
1-Boosting his STAB attack with the sun
2-Solar Beam can be used in one turn
3-Water attacks have their power halved.
If my opponent switch into a bulky water, Heatran can take surf and kill with Solar Beam. If Tyranitar switchs in the same turn I use Sunny Day it loses its SpDef boost and can be KOed by SolarBeam too. If my opponent brings Heatran, Shuca Berry halves the power of Earth Power and my Heatran can OHKO back with Earth Power. Blissey forces me to switch to Donphan and Thick Fat pokemons forces me to switch to Rotom-h. Dragons force me to switch to Donphan.

Donphan @ Choice Band
Ability: Sturdy
EVs: 252 HP/252 Atk
Adamant nature (+Atk, -SAtk)
- Ice Shard
- Earthquake
- Thunder Fang
- Assurance
This is my main counter to two main threats to my team: Tyranitar and Salamence. Initially, I used Donphan as a Sunny Day user. While it could counter Tyranitar and Salamence very well, the lack of attacking power couldn't help me much. I decided to put a Choice Band on Donphan and see what happens, and it surprised me a lot. Donphan can take a lot of beating and hit back with powerful blows. Ice Shard is for countering dragons such as Flygon and DD Salamence that otherwise would give me a lot of trouble. Earthquake has a lot of power with Choice Band and many people are caught by surprise expecting a defensive Donphan to use as a set-up fodder. Assurance hits ghost in the switch expecting to block Rapid Spin, also it OHKO Latias on the switch. With Thunder Fang I can use Donphan as a Gyarados counter under the sun, while it sounds crazy, under the sun Waterfall has its power halved and Donphan can take a +1Waterfall and KO Gyarados with Thunder Fang.
Sweepers

Tangrowth @ Life Orb
Ability: Chlorophyll
EVs: 200 Atk /230 Spd/ 80 SAtk
Naive nature (+SAtk, -SDef)
- Power Whip
- Hidden Power (Fire)
-Earthquake
-Sleep Powder
This is my main sweeper, Tangrowth is the best user of Chlorophyll. With Naive nature I outspeed Choice-Scarfed Heatran and OHKO with Earthquake. Tyranitar, Abomasnow and Hippowdon are OHKO by Tangrowth Power Whip or HP Fire (in case of Abomasnow), so even if I lose the Chlorophyll boost my opponent will lose an auto-weather pokemon. Sleep Powder puts to sleep anything that Tangrowth cannot kill. His good defense allows him to sweep without worrying much about priority moves.

Infernape @ Life Orb
Ability: Blaze
EVs: 250 SAtk /252 Spd/ 8 Atk
Naive nature (+SAtk, -SDef)
- Close Combat
- Vacuum Wave
-Flamethrower
-Grass Knot
Infernape is an excellent late-game sweeper. If my opponent doesn't have anything faster, Infernape can sweep a entire team with his excellent coverage and having a STAB move boosted by the sun.
With Blaze and Sunny Day activated, Infernape OHKO Cresselia with Flamethrower . Grass Knot is for water-types. Close Combat deals with Blissey, Snorlax and non-scarfed Heatran. Even without the sun he can sweep unprepared teams. Vacuum Wave aids my weakness agaisnt SubPetaya Empoleon and is useful agaisnt Lucario.
That's it. Please rate it.
Sorry if there is any grammar mistake.