SM OU Trying to make a balanced

[XB23]

Hi everybody, first post cause I need some help to build my balanced team.

I think it's a cool team but I don't like the tangrowth, but don't know how to change him (or maybe switch to a bulky O?)

Tanks reader ;)

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Earthquake
- Defog
- Toxic
- U-turn

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 8 Def / 252 SpD
Sassy Nature
- Giga Drain
- Knock Off
- Hidden Power [Ice]
- Earthquake

Kartana @ Choice Scarf
Ability: Beast Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Leaf Blade
- Smart Strike
- Sacred Sword
- Knock Off

Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Stealth Rock
- Lava Plume
- Earth Power
- Toxic

Greninja-Ash (M) @ Waterium Z
Ability: Battle Bond
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Water Shuriken
- Hydro Pump
- Dark Pulse
- U-turn

Charizard-Mega-X @ Charizardite X
Ability: Blaze
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Flare Blitz
- Dragon Claw
- Earthquake
- Dragon Dance

 

[TPP]

Welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide in-depth descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.