I'm not very good at competitive but here is my team so please help.
Garchomp (M) @ Life Orb
Ability: Rough Skin
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Earthquake
- Outrage
- Fire Fang
- Aqua Tail
Charizard-Mega-X (M) @ Charizardite X
Ability: Tough Claws
EVs: 4 HP / 252 Atk / 252 Def
Adamant Nature
- Dragon Claw
- Flare Blitz
- Earthquake
- Thunder Punch
Xurkitree @ Psychium Z
Ability: Beast Boost
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Hypnosis
- Thunderbolt
- Energy Ball
- Tail Glow
Suicune @ Lum Berry
Ability: Pressure
EVs: 4 Def / 252 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Surf
- Ice Beam
- Protect
- Rest
Kartana @ Life Orb
Ability: Beast Boost
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Leaf Blade
- Smart Strike
- Sacred Sword
- Swords Dance
Heatran (M) @ Air Balloon
Ability: Flash Fire
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk
- Magma Storm
- Flash Cannon
- Stealth Rock
- Earth Power