Double Colorless Energy (Base Set 96)

Double Colorless Energy (Japanese: ダブル無色エネルギー Double Colorless Energy; 無色２個エネルギー before TCG HeartGold & SoulSilver) was the first TCG Special Energy card to be released in the Pokémon Trading Card Game, and as such, is one of the most well-known, especially by older players. It was, until the TCG Team Rocket expansion, the only Energy card that one could only have four of in a deck; however, despite this, it found a great many uses across all kinds of TCG deck archetypes.

Release information
Double Colorless Energy was first included in the TCG Base Set with artwork by Keiji Kinebuchi, first released in the Japanese TCG Expansion Pack. Its first reprint was in the TCG Base Set 2, which was available only outside Japan. The card was re-released in the TCG HeartGold & SoulSilver expansion with new artwork by Kent Kanetsuna and a reworded effect, first released in the Japanese TCG HeartGold Collection. It was later reprinted in the TCG Next Destinies expansion with new artwork by 5ban Graphics. This print was then included in the Japanese TCG Reshiram-EX Battle Strength Deck (Reshiram-EX) and TCG Zekrom-EX Battle Strength Decks, the TCG Master Deck Build Box EX, the TCG Blastoise + Kyurem-EX Combo Deck, and the TCG Mewtwo vs Genesect Deck Kit. It was later reprinted again in the TCG Legendary Treasures expansion.

This card was reprinted in the TCG XY expansion with new artwork by 5ban Graphics, first released in the Japanese TCG Collection Y. This print was reprinted in the Japanese TCG M Charizard-EX Mega Battle Deck. It was reprinted again in the TCG Phantom Forces expansion, first released in the Japanese TCG Hyper Metal Chain Deck. It was later included in the Japanese TCG Super Legend Set: Xerneas-EX & Yveltal-EX, the TCG Emboar-EX vs Togekiss-EX Deck Kit, the TCG M Master Deck Build Box Power Style, and the TCG M Master Deck Build Box Speed Style. It was also included in the special English TCG Generations expansion and the Japanese TCG BREAK Starter Pack, both of which commemorate the 20th anniversary of the Pokémon franchise. A differently colored version of the XY print was included in the TCG Fates Collide expansion, first released in the Japanese TCG M Audino-EX Mega Battle Deck. The XY print was reprinted again in the Japanese TCG Premium Champion Pack as a Mirror Reverse Holofoil. It was reprinted as a TCG retro card in the TCG Evolutions expansion, first released in the Japanese TCG Expansion Pack 20th Anniversary subset, featuring the same artwork as the original print, an updated effect, and an updated card template reminiscent of the Original Series layout. Reverse Holofoil versions of this print were later given to players competing in International Championships held over the course of the 2016-2017 season. Four primary versions of this print were distributed, with stamps reflecting the event in which they were awarded. These included the Europe International Championships, held at the ExCeL London convention center in London, UK, on December 9–11, 2016; the Oceania International Championships, held at the Melbourne Park Function Centre in Melbourne, Australia, on March 10–12, 2017; the Latin America International Championships, held at the WTC Events Center in São Paulo, Brazil, on April 21–23, 2017; and the North America International Championships, held at the Indiana Convention Center in Indianapolis, Indiana, USA, on June 30–July 2, 2017. Each of these prints also have gold foil stamped "Staff" versions given to those overseeing the events, as well as gold foil stamped "Top 8" and "Champion" versions given to competitors.

During the Sun & Moon Series, this card was reprinted with new artwork by 5ban Graphics in the TCG Sun & Moon expansion, first released in the Japanese TCG Collection Sun, the TCG Sun & Moon Starter Set, and the TCG Premium Trainer Box. It was reprinted as a TCG Full Art card (Full Art) TCG Secret card in the TCG Guardians Rising expansion with different artwork by the same artist, first released in the Japanese TCG Strength Expansion Pack Sun & Moon. The Sun & Moon print was later included in the English TCG Shining Legends expansion, first released in the Japanese subset of the same name. In Japan, a Mirror Holofoil print of the Regular version was later included in the TCG GX Battle Boost subset. Non Holofoil versions were subsequently reprinted in the TCG Solgaleo-GX & Lunala-GX Legendary Starter Set, TCG Ultra Sun expansion, TCG Ultra Sun & Ultra Moon Premium Trainer Box, TCG Ultra Sun & Ultra Moon Deck Build Boxes, TCG Forbidden Light expansion, TCG Sky-Splitting Charisma expansion, TCG Thunderclap Spark subset, in each of the TCG GX Starter Decks, in the TCG Super-Burst Impact expansion, in the TCG Tag Team GX Premium Trainer Box, in the TCG Trainer Battle Decks (Brock of Pewter City Gym Trainer Battle Deck), and in the TCG Tag Team GX Deck Build Box.

Trivia

 * Double Colorless Energy was the only Energy card capable of providing more than one unit of Energy until the release of TCG Miracle Energy in the TCG Neo Destiny expansion. It was the only Energy card capable of providing more than one unit of Energy that could be attached to any Pokémon, however, until the release of TCG Bounce Energy in the TCG Skyridge expansion, which essentially was a version of this card with a drawback. Now, several cards, including TCG Upper Energy, TCG Scramble Energy, and TCG Boost Energy are able to provide multiple Energy units when attached.
 * This was the first special Energy card to be reprinted, though only in the English-only TCG Base Set 2. The first Japanese reprint would be TCG Rainbow Energy.

Origin
Double Colorless Energy was likely created in order to represent all seven (at the time) of the TCG Type (TCG types) with an Energy card.

Doppel-Farblos-Energie (TCG) Doble energía incolora (TCG) Double Énergie Incolore (Set de Base 96) Energia Incolore Doppia (Set Base 96) 無色2個エネルギー 双重无色能量（集换式卡片）