Forms

• 
  Miraidon

  Default

  ElectricDragon
• Miraidon-Low-Power-Mode

  ElectricDragon
• Miraidon-Drive-Mode

  ElectricDragon
• Miraidon-Aquatic-Mode

  ElectricDragon
• Miraidon-Glide-Mode

  ElectricDragon

This seems to be the Iron Serpent mentioned in an old book. The Iron Serpent is said to have turned the land to ash with its lightning.

Abilities

• Hadron Engine

  Turns the ground into Electric Terrain when the Pokémon enters a battle. The futuristic engine within the Pokémon also boosts its Sp. Atk stat on Electric Terrain.

Cries

Learnset

Type matchups

Evolution chain

Miraidon