The Retreat Cost of the Basic Pokémon this card is attached to is 1 less
Attach Small Balloon to 1 of your Pokémon (excluding Pokémon-ex and Pokémon that has Dark or an owner in its name) that doesn't have a Pokémon Tool attached to it. If the Pokémon Energy Root is attached to is Pokémon-ex or has Dark or an owner in its name, discard Energy Root.
