Speaking of structure deck cards, I saw these cards reprinted in Japan, from structure decks. I am not certain where this card comes from, but it has a different description from the original. This card is from Spike and Baron's list:
W6S-JP001 Red-Eyes Darkness Dragon
Dark/Dragon/9/2400/2000
This card cannot be Normal Summon. This card can only be special summon by sacrificing
a [Red Eyes Black Dragon] on your field. For each Dragon Type monsters in all player's
Graveyard, increase this card's attack strength by 300.
Ultimate Rare
But the structure card has this description:
SD1-EN001: Red-Eyes Darkness Dragon
This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by Tributing 1 "Red-Eyes B. Dragon" on your side of the field. Increase the ATK of this card by 300 points for each Dragon-Type monster in your Graveyard.
Why are these cards different? And does anyone have the Japanese version of WC6-JP001 (reprinted structure deck card), and can translate it? Who knows UDE could always reprint this card.