Ash gren and heracross core

Greninja-Ash @ Choice Specs
Ability: Battle Bond
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hydro Pump
- Dark Pulse
- U-turn
- Water Shuriken

Heracross-Mega @ Heracronite
Ability: Skill Link
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Close Combat
- Pin Missile
- Rock Blast
- Substitute

Landorus-Therian @ Leftovers
Ability: Intimidate
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Stealth Rock
- Earthquake
- Hidden Power [Ice]
- U-turn

Heatran @ Leftovers
Ability: Flash Fire
EVs: 212 HP / 44 Def / 252 Spe
Timid Nature
- Substitute
- Toxic
- Magma Storm
- Earth Power

Mew @ Leftovers
Ability: Synchronize
EVs: 240 HP / 156 Def / 112 Spe
Timid Nature
- Ice Beam
- Will-O-Wisp
- Soft-Boiled
- Defog

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 252 HP / 4 Def / 252 SpD
Sassy Nature
- Giga Drain
- Knock Off
- Earthquake
- Hidden Power [Fire]
>The whole point of this team is to help damage threat's to Ash Greninja so it can late game sweep