This Pokémon is both Lightning Metal type.
Search your deck for a Holon Energy card and attach it to Jolteon. Shuffle your deck afterward.
You may return an Energy card attached to Jolteon to your hand. If you do, this attack does 20 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)