As the title suggests, I did actually make this team in about 5 minutes... However for something that I whipped up in 5 minutes, I have actually done pretty well against others. Well I'll give you the sunny day team below:
Obviously in a sunny day team, I need something to bring out the sun, what better candidate than Ninetales? With access to drought he's a must have in any sunny day team. I chose Fire Blast over Flamethrower for the extra power, at the expense of 15% less accuracy. Solarbeam for obvious reasons, the only con with solarbeam is with other weather users, that's when I tend to use Toxic if I can predict another weather user coming in (except Abomasnow in which I'll just use Fire Blast). Substitute works to keep status free as much as possible.



Venusaur @ Life Orb
Trait: Chlorophyll
EVs: 252 Spd / 252 SAtk / 4 HP
Modest Nature
- Sleep Powder
- Growth
- Giga Drain
- Hidden Power [Fire]
The sunny day abuser Venusaur, if his bulk isnt enough, under the sun his speed is incredible. Growth is the obvious choice, being able to get to 4x sp atk in just 3 turns and after that, even heatrans can be swept by a Venusaur. Sleep Powder is used when I find one of the threats for Venusaur, it gives me a chance to switch out and bring in a counter for the sleeping pokemon, or continue to setup. Luck does sometimes go against me and the sleeping pokemon wakes up next turn. Hidden Power Fire is just great for getting rid of Scizors and ferrothorns, however I have been thinking about Hidden Power Rock too.



Donphan @ Leftovers
Trait: Sturdy
EVs: 252 HP / 80 Atk / 176 Def
Adamant Nature
- Earthquake
- Ice Shard
- Rapid Spin
- Stealth Rock
My spinner on this team actually benefits in the sun as his water weakness is mitigated by the sun, allowing him to either set up with rocks, or spin away hazards for my team members. His power is also not to be underestimated, with access to a priority move in Ice Shard he can sweep dnites, mences and garchomps without too much problem (Fire Blast from a mence may be a problem though)



Cresselia (F) @ Leftovers
Trait: Levitate
EVs: 240 Def / 252 HP / 16 SDef
Bold Nature
- Thunder Wave
- Moonlight
- Calm Mind
- Ice Beam
She's so underrated... nuff said. Under standard conditions, Cresselia is not the best support/tank as she's susceptible to weather. Under the sun however, her moonlight heals 2/3 of her health. Her ability to troll my opponents with the use of Twave and then proceeding to calm mind up, even mons with 4x resist to ice beam can still be taken down... after a while, but hey, it's not difficult to setup Calm mind 6 times...



Heatran @ Leftovers
Trait: Flash Fire
EVs: 252 HP / 252 SAtk / 4 Spd
Modest Nature
- Substitute
- Hidden Power [Ice]
- Lava Plume
- Earth Power
The only steel type that doesnt suffer from being in the sun, in fact he benefits and his ability flash fire means he has complete immunity from fire damage, something which is helpful to cover Venusaur's fire weakness, and its ice weakness too. Most people tend to switch when Heatran enters so I see a free sub opportunity there. Lava Plume is the main move and I use it over Fire Blast and Flamethrower for the extra accuracy (over Fire Blast) and the extra burn chance which can be helpful. Earth Power helps remove other Heatrans and other threats which are also weak to ground. Toxic is my go to move when I have something that I cannot inflict much damage on (usually Dragons, or the pink blobs - if the latter it is to switch them out).



Dragonite @ Lum Berry
Trait: Multiscale
EVs: 252 Spd / 252 Atk / 4 HP
Jolly Nature
- Dragon Dance
- Dragon Claw
- ExtremeSpeed
- Roost
Seeing as I do have a bit of a weakness to ground type attacks (namely my fire types), I cant shift all of that load on to Cresselia as that just becomes predictable. Dragonite is also a very good sweeper, Multiscale and Lum Berry allow him to usually get one turn to set up before demolishing the team. ExtremeSpeed is used as his secondary move as I will have a problem against pranksters (GRRRR prankster + copycat Riolu).
Well that's the team, helpful comments are welcome however I'm not specifically asking for help since I think it's pretty good already but if you see some holes, I'll hear you out :P
At A Glance:






In Depth:



Ninetales @ Leftovers
Trait: Drought
EVs: 252 SDef / 252 HP / 4 SAtk
Calm Nature
- Substitute
- Toxic
- SolarBeam
- Fire Blast






In Depth:



Ninetales @ Leftovers
Trait: Drought
EVs: 252 SDef / 252 HP / 4 SAtk
Calm Nature
- Substitute
- Toxic
- SolarBeam
- Fire Blast
Obviously in a sunny day team, I need something to bring out the sun, what better candidate than Ninetales? With access to drought he's a must have in any sunny day team. I chose Fire Blast over Flamethrower for the extra power, at the expense of 15% less accuracy. Solarbeam for obvious reasons, the only con with solarbeam is with other weather users, that's when I tend to use Toxic if I can predict another weather user coming in (except Abomasnow in which I'll just use Fire Blast). Substitute works to keep status free as much as possible.



Venusaur @ Life Orb
Trait: Chlorophyll
EVs: 252 Spd / 252 SAtk / 4 HP
Modest Nature
- Sleep Powder
- Growth
- Giga Drain
- Hidden Power [Fire]
The sunny day abuser Venusaur, if his bulk isnt enough, under the sun his speed is incredible. Growth is the obvious choice, being able to get to 4x sp atk in just 3 turns and after that, even heatrans can be swept by a Venusaur. Sleep Powder is used when I find one of the threats for Venusaur, it gives me a chance to switch out and bring in a counter for the sleeping pokemon, or continue to setup. Luck does sometimes go against me and the sleeping pokemon wakes up next turn. Hidden Power Fire is just great for getting rid of Scizors and ferrothorns, however I have been thinking about Hidden Power Rock too.



Donphan @ Leftovers
Trait: Sturdy
EVs: 252 HP / 80 Atk / 176 Def
Adamant Nature
- Earthquake
- Ice Shard
- Rapid Spin
- Stealth Rock
My spinner on this team actually benefits in the sun as his water weakness is mitigated by the sun, allowing him to either set up with rocks, or spin away hazards for my team members. His power is also not to be underestimated, with access to a priority move in Ice Shard he can sweep dnites, mences and garchomps without too much problem (Fire Blast from a mence may be a problem though)



Cresselia (F) @ Leftovers
Trait: Levitate
EVs: 240 Def / 252 HP / 16 SDef
Bold Nature
- Thunder Wave
- Moonlight
- Calm Mind
- Ice Beam
She's so underrated... nuff said. Under standard conditions, Cresselia is not the best support/tank as she's susceptible to weather. Under the sun however, her moonlight heals 2/3 of her health. Her ability to troll my opponents with the use of Twave and then proceeding to calm mind up, even mons with 4x resist to ice beam can still be taken down... after a while, but hey, it's not difficult to setup Calm mind 6 times...



Heatran @ Leftovers
Trait: Flash Fire
EVs: 252 HP / 252 SAtk / 4 Spd
Modest Nature
- Substitute
- Hidden Power [Ice]
- Lava Plume
- Earth Power
The only steel type that doesnt suffer from being in the sun, in fact he benefits and his ability flash fire means he has complete immunity from fire damage, something which is helpful to cover Venusaur's fire weakness, and its ice weakness too. Most people tend to switch when Heatran enters so I see a free sub opportunity there. Lava Plume is the main move and I use it over Fire Blast and Flamethrower for the extra accuracy (over Fire Blast) and the extra burn chance which can be helpful. Earth Power helps remove other Heatrans and other threats which are also weak to ground. Toxic is my go to move when I have something that I cannot inflict much damage on (usually Dragons, or the pink blobs - if the latter it is to switch them out).



Dragonite @ Lum Berry
Trait: Multiscale
EVs: 252 Spd / 252 Atk / 4 HP
Jolly Nature
- Dragon Dance
- Dragon Claw
- ExtremeSpeed
- Roost
Seeing as I do have a bit of a weakness to ground type attacks (namely my fire types), I cant shift all of that load on to Cresselia as that just becomes predictable. Dragonite is also a very good sweeper, Multiscale and Lum Berry allow him to usually get one turn to set up before demolishing the team. ExtremeSpeed is used as his secondary move as I will have a problem against pranksters (GRRRR prankster + copycat Riolu).
Well that's the team, helpful comments are welcome however I'm not specifically asking for help since I think it's pretty good already but if you see some holes, I'll hear you out :P