Is this a good team for in-game ORAS/XY and competitive battling? Improvements?

Question

So this is basically the team I will use for most of my gameplay and mostly for competitive battling. I want to know if it is a good team and if there is room for any improvements. Any help appreciated!

Amoonguss (M) @ Black Sludge
Ability: Regenerator
EVs: 248 HP / 168 Def / 92 SpD
Bold Nature
- Spore
- Giga Drain
- Clear Smog
- Hidden Power [Fire]

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

Bisharp (M) @ Black Glasses
Ability: Defiant
EVs: 252 Atk / 52 SpD / 204 Spe
Adamant Nature
- Knock Off
- Iron Head
- Sucker Punch
- Pursuit

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- Stone Edge
- Superpower
- U-turn

Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 188 SpD / 68 Spe
Calm Nature
- Lava Plume
- Toxic
- Taunt
- Stealth Rock

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

Comments

What format?

Answer 1

This team is very Solid overall, and I don't think it'll have many problems in-game, though you'll probably want to remove that choice scarf from Landorus-T
Other than that:
This team is fairly slow overall, so Mega Gallade might be a better option over Mega Medicham. What's definitely sure is that I have a really hard time seeing why you'd want Thunder Punch on it. You have Rotom-W and Amonguss to deal with Water Types.

I'm also skeptical about Hidden Power Fire on Amonguss. Amonguss is defensive so it won't be dealing much damage with coverage moves, besides Ferrothorn and Scizor.

Comments

What moveset do you suggest for Mega Gallade? And what item on Lando-T?

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For Lando-T, you probably want choice scarf on it for competitive battling but simply not for in-game, so just remove it when in-game.
I respect Mega Medicham's wallbreaking ability on this team.  A Swords Dance Gallade will be able to do this, while also being able to demolish slower teams later in the game with ease.  If something goes down too early, outspeeding things such as Mega Charizard Y, Garchomp, Terrakion, and even Mega Gardivoir are things that are going to help a lot more than they're going to hurt. (Maybe HP Fire Lati@s too)
Swords Dance
Close Combat
Ice Punch
Zen Headbutt