Rocky Helmet (2 Diamonds rarity) is the #A4b-323 card from the Deluxe Pack ex set in Pokémon TCG Pocket. Rocky Helmet can be obtained from Deluxe Pack ex Booster Pack in the Deluxe Pack ex Set.
“If the Pokémon this card is attached to is in the Active Spot and is damaged by an attack from your opponent's Pokémon, do 20 damage to the Attacking Pokémon.”
PocketCards.net
