Boost Energy: Boost Energy can be attached only to an Evolved Pokemon. Discard Boost Energy at the end of the turn it was attached. Boost Energy provides :colorless :colorless :colorless Energy. The Pokemon Boost Energy is attached to can't retreat. When the Pokemon Boost Energy is attached to is no longer an Evolved Pokemon, discard Boost Energy. Delcatty: :colorless Energy Call - 10 Attach 1 Energy Card from your discard pile to your active Pokemon. Question: What happens if there's a Boost Energy in my discard pile and I use Delcatty's Energy Call to take it back from my discard pile and attach it back to Delcatty, will I discard the Boost Energy straight away or can I use that Boost Energy for the next turn?