In World Championship 2006, he is named Dark Ruler Vandalgyon and appears as a Theme Duelist who challenges the player to use 10 or more Counter Trap Cards during the Duel.
In World Championship 2007, he appears under the name Dark Ruler Vandalgyon and is a Level Five Duelist. By beating him five times, the player gets closer to unlocking a new Booster Pack.
In World Championship 2006, Dark Ruler Vandalgyon plays a DARK Deck titled, "Roar of Pluto". In World Championship 2007, he plays a Counter Trap Deck titled, "Out of Nowhere!". In World Championship 2010, Van'Dalgyon the Dark Dragon Lord plays a Dragon Deck titled, "The Van'Dalgyon".
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