Shiftry (M) @ White Herb  
Ability: Chlorophyll  
EVs: 128 Atk / 24 Def / 4 SpA / 100 SpD / 252 Spe  
Lonely Nature  
- Solar Beam  
- Fake Out  
- Explosion  
- Protect  

Houndoom (M) @ Cheri Berry  
Ability: Flash Fire  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Overheat  
- Solar Beam  
- Crunch  
- Protect  

Starmie @ Twisted Spoon  
Ability: Natural Cure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 2 Atk / 30 SpA / 30 Spe  
- Psychic  
- Ice Beam  
- Hidden Power [Fire]  
- Protect  

Aerodactyl (F) @ Lum Berry  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Rock Slide  
- Earthquake  
- Sunny Day  
- Protect  

Heraheart (Heracross) (F) @ Salac Berry  
Ability: Swarm  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Megahorn  
- Brick Break  
- Hidden Power [Rock]  
- Endure  

Marowak (F) @ Thick Club  
Ability: Lightning Rod  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Earthquake  
- Hidden Power [Rock]  
- Swords Dance  
- Protect

Shiftry @ Premier Ball
Provides Fake Out to enable Aerodactyl to set up Sun. Abuses Sun following turn via fast booms or firing off Solar Beam to take out Water types. Latios Timid Ice Beam is a 2HKO. Jolly 252 Atk Meta Mash is 6% OHKO chance, about 25% without Def EVs, Dagenius 2HKOs. Minimum Aerodactyl EQ dmg onto Dagenius followed by Shiftry boom should KO. White Herb lets you maintain your threat levels on T1 if you want to fast boom consistently to great effect.

Houndoom @ Premier Ball
Solid abuser of Sun with decent STAB options into the main meta staples. Can outrun some slower variants of Zapdos and OHKO with OH under Sun. Is quite frail, however. Mitigated by Fake Out and Lightning Rod support. In rare scenarios Starmie may be able to use HP Fire to activate Flash Fire for further firepower.

Starmie @ Premier Ball
Largely added to provide a valuable Ice resist. HP Fire allows it to 2HKO most Metagross under Sun. Twisted Spoon boosted Psychic gives it a strong STAB option against things like Snorlax while Ice Beam lets you hit Lati@s and Zapdos for super effective.

Aerodactyl @ Premier Ball
High Speed combined with Fake Out support allows for very reliable Sun set up. Doesn't need to do much else besides that but can dish out decent chip damage or fish for flinches.

Heracross @ Premier Ball
Opposing Snorlax can be a significant wall against most of the team so Heracross is here to hit it hard. The threat of being hit by Lati@s is mitigated somewhat by Endure + Salac to outspeed and OHKO with Megahorn. HP Rock is to not be completely walled by Zapdos or Moltres.

Marowak @ Premier Ball
A further balance to our many special attackers. Also appreciates the Sun weakening Water type attacks and protects Aerodactyl and Starmie from their Electric weaknesses as well as other mons who take big Thunderbolt damage like Houndoom.

Sunkern @ Sun Stone
Further Notes
This is quite a high risk, high reward style team. Particularly with the accuracy of moves like Overheat, Rock Slide and Megahorn as well as the fragility of the used mons and the lack of staple mons such as the Meta/Lati/Zap trio. I recommend this team if you want to play matches very quickly and very aggressively.