Simon Muran (シモン・ムーラン Shimon Mūran), known as Paradox in the North American English release of the game, is a character in Yu-Gi-Oh! Dark Duel Stories. This is a video game depiction of Siamun Muran, predating his first manga appearance.
Simon is a Stage 3 opponent, unlocked by defeating all the Stage 2 opponents at least five times each. By defeating him and the other Stage 3 opponents five times each, the player can unlock DarkNite.
Simon's Deck contains mostly Light female cards, which are supported by "Bright Castle". He uses three copies of "Brain Control", despite it being Limited.
The following cards can be won, by defeating Simon. The chance of winning a card is indicated by the "%" (chance out of 100) and "2048th" (chance out of 2048) columns.