[OU] Mega Heracross bulky offense

Heracross-Mega @ Heracronite
Ability: Moxie
EVs: 240 HP / 136 Atk / 132 Spe
Adamant Nature
- Close Combat
- Pin Missile
- Rock Blast
- Substitute

Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
IVs: 0 Atk
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split

Heatran (M) @ Leftovers
Ability: Flash Fire
EVs: 248 HP / 8 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Lava Plume
- Stealth Rock
- Earth Power
- Toxic

Latios @ Life Orb
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psyshock
- Draco Meteor
- Calm Mind
- Roost

Tangrowth (M) @ Rocky Helmet
Ability: Regenerator
Shiny: Yes
EVs: 244 HP / 216 Def / 48 SpD
Relaxed Nature
- Sleep Powder
- Giga Drain
- Knock Off
- Leech Seed

Jirachi @ Choice Scarf
Ability: Serene Grace
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Iron Head
- Fire Punch
- Healing Wish
- U-turn