wack ass mono fighting

my setup is wack (Chesnaught) @ Leftovers
Ability: Bulletproof
Shiny: Yes
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Spiky Shield
- Stomping Tantrum
- Wood Hammer
- Thunder Punch

Lucario @ Life Orb
Ability: Inner Focus
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Bullet Punch
- Aura Sphere
- Shadow Ball
- Psychic

Toxicroak @ Black Sludge
Ability: Dry Skin
Shiny: Yes
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
- Rain Dance
- Protect
- Toxic
- Substitute

Kommo-o @ Dragonium Z
Ability: Overcoat
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Clanging Scales
- Autotomize
- Flamethrower
- Focus Blast

Heracross-Mega @ Heracronite
Ability: Moxie
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Brick Break
- Knock Off
- Megahorn
- Shadow Claw

Terrakion @ Life Orb
Ability: Justified
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Rock Slide
- Poison Jab
- Earthquake
- Close Combat