R Energy is an Energy card. It is listed as Special.
R Energy sits at 95/109 in Team Rocket Returns, position 95 of 111. Before it is 94 Dark Metal Energy, and after it is 96 Rocket's Articuno ex. The set belongs to the EX series. It was released on November 1, 2004. The printed size is 109. This checklist is longer, at 111 cards. The listed rarity is Uncommon.
The card text says: R Energy can be attached only to a Pokémon that has Dark or Rocket's in its name. While in play, R Energy provides 2 Darkness Energy. (Doesn't count as a basic Energy card.) If the Pokémon R Energy is attached to attacks, the attack does 10 more damage to the Active Pokémon (before applying Weakness and Resistance). When your turn ends, discard R Energy.
The illustrator line reads Takumi Akabane. I count 51 other cards in the catalog with that illustrator.
Team Rocket Returns set binder is where a full Team Rocket Returns set goes. This card fills one slot there. I still need this card.