You need both Lugia LEGEND cards in order to play. Once you have both cards, place both on your Bench
Ocean Grow
Once during your turn, when you put Lugia into play, you may look at the top 5 cards of your deckand attach all Energy cards you find there to Lugia . Discard all other cards.
Elemental Blast
Discard a Energy, Energy, and Energy attached to Lugia .