Miraidon

Basic

AbilityPhoton Cord

If this Pokémon is in the Active Spot and is Knocked Out by damage from an attack from your opponent's Pokémon, move up to 2 Basic Lightning Energy cards from this Pokémon to 1 of your Benched Pokémon.

Thunder90

This Pokémon also does 30 damage to itself.

Weakness

Fighting ×2

Resistance

—

Retreat

●

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.