As often as you like during your turn (before your attack), you may take 1 Grass Energy card attached to 1 of your Pokémon and attach it to a different one. This power can't be used if Venusaur is Asleep, Confused, or Paralyzed.
Disclaimer: The following data is based on sale history from a third party source. Data is updated about every 5 days. This data does not serve as a value guarantee.