Crystal Energy is an Energy card. It is listed as Special.
Crystal Energy sits at 146/147 in Aquapolis, position 146 of 182. Before it is 145 Boost Energy, and after it is 147 Warp Energy. The set belongs to the E-Card series. It was released on 15 January 2003. The printed size is 147. This checklist is longer, at 182 cards. The listed rarity is Uncommon.
The card text says: Crystal Energy provides 1 Energy of all types (colors) of basic Energy cards attached to the Pokémon Crystal Energy is attached to. If there are no basic Energy cards attached to the Pokémon Crystal Energy is attached to, Crystal Energy provides Colorless Energy.
The illustrator line reads Shin-ichi Yoshikawa. I count 50 other cards in the catalog with that illustrator.
Aquapolis set binder is where a full Aquapolis set goes. This card fills one slot there. I still need this card.