Im just curious because I have a dark machamp and a dark jolteon in my old tcg set.
Nope. Remember, the TCG, Games, and the Amine are different branches in the Pokémon tree. They are made at separate studios and have different themes.
Hope this helps.
No, not in the regular games (Platinum, Heart Gold, White, etc) But in Pokemon Colosseum and Pokemon XD: Gale of Darkness, you can get Shadow Pokemon.
(P.S. Remember: TCG is different from the games)
Hope This Helped :D