No, there is no authentic card called "Exodia the Dark Master".
The card named 'Exodia the Dark Master' is a counterfeit card, and not worth anything.
Yes it is fake, there is no such card as Exodia the Dark Master
There is no legitimate card called Exodia the Dark Master. It is a well-known fake, and has 'Infinite' for attack, which is indication enough that the card is fake.
The card 'Exodia the Dark Master', with infinite attack, is a fake card. It is not even based on a real card, it is 100% fictional. Therefore there are no game rules to apply to it.
If you have a card called "Exodia the Dark Master", then it is a fake. There is no authentic card with that name.
'Exodia the Dark Master' is a fake card. There is no real card of that name.
The only legal, legitimate 'Exodia' cards are the five '..the Forbidden One' cards, 'Exodius the Ultimate Forbidden Lord', 'Exodia Necross', and 'Exxod, Master of the Guard' (who is Exodia's ultimate defence aspect, rather than ultimate attack). Any other thing that resembles him is a fake, including oddly named cards like "Darkly Big Rabbi" and "Exodia the Dark Master".
exodia comes in legend of blue eyes and in Dark Beginning1
The original pack it came from was Dark Crisis. After that, it was re-released in Dark Revelations 1. Also, it was a Promo card from the second Master Collection.
First they were released in Legend of Blue-Eyes white Dragon (a common misconception is that they are in Yugi starter decks), Exodia the Forbidden one was released in the Master Collection 1, they were all released in Dark Legends, Retro Pack 1, Dark Beginnings Vol1, and in the Yugioh GX Ultimate Beginner's Pack.
The Master Collection Exodia is not worth much. Perhaps a few pounds or so.
All five Exodia cards can be obtained in the booster packs Legend of Blue-Eyes White Dragon and Dark Beginning 1.
Exodia the Forbidden One (+ his four limbs)Exodia Necross,Exodius the Ultimate Forbidden Lord,Exxod, Master of the Guard.
There are several sets. There is a full set of Exodia in, Legend of the Blue Eyes White Dragon (LOB) Dark Beginnings 1 (DB1) Ultimate Beginner's Pack (UBP1) There are also some sets with just the head of the Forbidden One. Master Collection 1 (MC1) Dark Duel Stories (DDS) Retro pack 1
There are the five '...the Forbidden One' cards. There is a full set in ultra rare in LOB, an ultra rare head and common/rare limbs in Dark Beginnings Vol1, Retro Pack 1 and Dark Legends, the head has two additional printings in Master Collection 1 and in the game Dark Duel Stories, and lastly a full set is available in secret rare, in the Ultimate Beginner's Pack 1. Next to be releases was Exodia Necross, ultra rare in Dark Crisis, it has had a super rare reprint in DR1. Structure deck 7, Invincible Fortress gave another Exodia card in the form of his ultimate defence aspect, 'Exxod, Master of the Guard'. Lastly came 'Exodius the Ultimate Forbidden Lord' came out in the pages of Shonen Jump Magazine. It is ultimate rare.
As long as Exodia the Forbidden One or any of its appendages are on the field, you can activate Creature Swapon it. However, this does not apply if Exodia the Forbidden One is in the Hand. For this situation, you can use Exchange instead.