What do you think about my OU team?

Question

Toxapex @ Leftovers
Ability: Regenerator
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Baneful Bunker
- Recover
- Scald
- Toxic

Heracross @ Flame Orb
Ability: Guts
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Knock Off
- Facade

Landorus-Therian @ Groundium Z
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Stealth Rock
- Rock Slide
- Earthquake
- Knock Off

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 4 Atk / 252 SpD
Sassy Nature
IVs: 0 Spe
- Leech Seed
- Protect
- Gyro Ball
- Toxic

Medicham-Mega @ Medichamite
Ability: Pure Power
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- High Jump Kick
- Ice Punch
- Fake Out
- Thunder Punch

Arcanine @ Leftovers
Ability: Intimidate
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Flare Blitz
- Wild Charge
- Extreme Speed
- Close Combat

Comments

Replace Heracross and Arcanine with Tyranitar for type variety and Heatran for better stats and taunt. Give Toxapex a black sludge to hurt trick users. Replace its baneful bunker with haze to stop setup sweepers. Give Landorus a rocky helmet to hurt contact users, especially U-turners. Replace its rock slide and knock off with U-turn to reduce the need to predict switches and ice hidden power to cover flying and grass. Replace Ferrothorn's toxic with power whip to cover water and hit slower opponents. Replace Medicham's thunder punch with zen headbutt for STAB.

Answer 1

Toxapex: Why not Black Sludge? Sometimes many player use trick to give foe the choice items. Black Sludge will punish them.
Baleful Banker is a bad move. You already have Toxic. Use Haze to eliminates your foe' s stat changes. Bye bye Swords Dance Nasty Plot.

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Heracross: Fair enough.

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Landorus Therian: Offensive set? Give It U-Turn instead of Rock Slide. Also, I suggest Jolly nature.

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Ferrothorn: Use Power Whip instead of Gyro ball.
Give it 252 HP / 188 SpD / 68 Def. And 0 SpA and Careful nature..

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Arcanine: ?????. Use Heatran. Flash Fire Heatran+Ferrothorn or Scizor= !!!!!!

Heatran @ Leftovers
Ability: Flash Fire
EVs: 248 HP / 220 SpD / 40 Spe
Calm Nature
- Magma Storm
- Toxic
- Earth Power
- Taunt or Flash Cannon

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Medicham-Mega: Give it Zen Headbutt instead of Thunder Punch. Also I suggest adamant nature.