Trading Card Game, as well as rules text that explicitly prohibits using them in Duels, they're illegal for tournament play and may be treated as banned cards
Originally, Walls were the only creatures that couldnt attack
In designing the set, Mark Rosewater, in the article "Outlaws of the Land, Part 1," noted this: "Defining 'commit a crime' as a type of action, something many Magic cards do, rather than as a specific new mechanic, allowed us to define the term in a way that made many existing cards part of the theme." This means that we can use cards that have existed since Alpha when looking at Crime, and focus on cards that care about Crimes being committed
Sword of Deep-Seated
Several factors influence Dragon card values: card condition (mint cards worth 3-5x more), rarity (holographic and rare cards command higher prices), first edition status, PSA/BGS grading scores, and market demand for specific Pokemon