The team:

H (Heracross) (F) @ Lum Berry
Ability: Swarm  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
IVs: 31 HP / 31 Atk / 31 Def / 31 SpA / 31 SpD / 31 Spe  
- Megahorn
- Brick Break  
- Swords Dance  
- Earthquake

R (Raikou) @ Magnet
Ability: Pressure
Level: 50  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 31 HP / 2 Atk / 30 Def / 31 SpA / 31 SpD / 31 Spe  
- Thunderbolt  
- Hidden Power [Ice] 
- Calm Mind
- Thunder

L (Latios) (M) @ Twistedspoon
Ability: Levitate
Level: 50  
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature  
IVs: 31 HP / 0 Atk / 31 Def / 31 SpA / 31 SpD / 31 Spe  
- Psychic
- Dragon Claw
- Thunderbolt
- Surf

Notes:
- Strategy: Heracross beats everything except fliers/Levitators, which Raikou and Latios own. Raikou can CM sweep if Heracross dies to hax while setting up. Latios leads the early rounds because it outspeeds and OHKOs nearly everything with minimal super-effective text.
- Thunder is good because of Rain Dance and 2v1 Raikou/Latios situations where Raikou is out and Latios OHKOs the opposing Pokemon.
- Jolly nature is used on Heracross primarily to outspeed Anabel 2's Raikou.
- Old team (Slaking instead of Latios): https://pastebin.com/ms99DMRe 
- WR run (which used a Hardy Slaking by mistake): https://www.twitch.tv/videos/1503760575