PocketCards.netAbility
Nightmare Aura
Ability in Pokémon TCG Pocket
6 cards have this ability
Ability effect
AbilityWhenever you attach a 
Energy from your Energy Zone to this Pokémon, do 20 damage to your opponent's Active Pokémon.
Energy from your Energy Zone to this Pokémon, do 20 damage to your opponent's Active Pokémon.