Wanted to use Mega Chard-X for a long time now, I think it´s pretty good rn. Feel free to make any changes :]

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

Manaphy @ Waterium Z
Ability: Hydration
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Tail Glow
- Psychic
- Surf
- Rain Dance

Tapu Lele @ Choice Scarf
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Moonblast
- Hidden Power [Fire]
- Shadow Ball

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 252 HP / 28 Def / 228 SpD
Sassy Nature
- Giga Drain
- Knock Off
- Hidden Power [Ice]
- Earthquake

Zapdos @ Leftovers
Ability: Static
EVs: 248 HP / 240 Def / 20 Spe
Bold Nature
IVs: 0 Atk
- Discharge
- Roost
- Toxic
- Defog

Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 4 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Magma Storm
- Earth Power
- Taunt
- Stealth Rock