Reuniclus (F) @ Life Orb
Ability: Magic Guard
EVs: 252 HP / 4 Def / 252 SAtk
Quiet Nature
IVs: 2 Atk / 30 SAtk / 0 Spd
- Trick Room
- Psychic
- Focus Blast
- Hidden Power [Fire]
Heracross-Mega @ Heracronite
Ability: Skill Link
EVs: 252 Atk / 164 HP / 92 Spd
Adamant Nature
- Substitute
- Focus Punch
- Pin Missile
- Rock Blast
Landorus-Therian (M) @ Leftovers
Ability: Intimidate
EVs: 248 HP / 16 Atk / 244 Def
Adamant Nature
- Stealth Rock
- Earthquake
- U-turn
- Stone Edge
Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 248 HP / 216 Def / 44 Spd
Bold Nature
IVs: 0 Atk
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split
Bisharp (M) @ Assault Vest
Ability: Defiant
EVs: 64 HP / 252 Atk / 192 SDef
Adamant Nature
- Sucker Punch
- Iron Head
- Pursuit
- Knock Off
Latios (M) @ Life Orb
Ability: Levitate
EVs: 252 SAtk / 4 SDef / 252 Spd
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Psyshock
- Defog
- Roost
Balance slow team around Reuniclus OTR + Mega-Heracross, Reuniclus is key against more offensive teams with Hidden Power Fire lures Genesect/Scizor. Sub Focus Punch Mega Heracross is key to break another balance and stall teams because the rest of the team lacks of potential to break more defensive teams. Landorus-T is the Stealth Rock user of the team core with pivot Rotom-W like defensive bulky core kinda standard, Bisharp AV helps to check stuff like Latios, Latios or Kyurem-B, also kill with Pursuit Aegislash which walls Mega-Heracross and Reuniclus, finally Latios the defogger of the team, another water resist to check stuff like Keldeo, Manaphy or Thundurus.
I don't have time to individually comment on every team, but this team definitely caught my interest. I really like how you innovated with both Reuniclus and Mega Heracross; HP Fire is an amazing lure because 99% of the time they're always going to switch in their Genesect or Scizor to revenge kill you, and Sub Punch Mega Heracross is extremely powerful, capable of setting up on most defensive Pokemon and just smashing through teams like butter. It really helps wear down both defensive and opposing balanced teams that this team would otherwise struggle to break through. Both Landorus-T and Bisharp are great partners because they provide the team with a solid check to Aegislash which Sub Punch Hera nor Reuniclus can really break through, and with the lack of Shadow Ball to make way for HP Fire, Bisharp helps alleviate that problem by trapping and eliminating bulky Psychic-types such as Latias and Latios. It can also break through bulky Fairies that wall the offensive core. Defensive Rotom-W keeps Belly Drum Azumarill, arguably the biggest threat to this team, in check, as well as providing you with a mandatory Mega Pinsir and Talonflame counter. Last but not least, Latios is a great check to key top tier threats and removing hazards which could potentially wear down your Volt-turn core and Mega Heracross.
Overall amazing team man, you did a great job in showcasing the true power of that core. Keep up the good work guys, there's other great teams as well!