This black market would have spawned even if trading had been released with absolutely no restrictions, however
Japanese Pokmon cards look higher quality because they feature superior printing with deeper colors, refined holofoil patterns, and better centering due to stricter quality control at Japanese manufacturing facilities
C Common Brain Jacker X DARK Level 2 [ FiendFlipEffect ] ATK 200 DEF 900 FLIP: Equip this card to a monster on your opponent's side of the field and treat it as an Equip Card
By Tributing it, you can negate and destroy any Spell, Trap, or Monster Effect, and then Special Summon Stardust Dragon/Assault Mode back to your field during the End Phase
Or the fact that you can transfer Astrologian's Planisphere to a real creature since its an equipment, or to a creature that has synergies with +1/+1 counters placed put on it
Although Yu-Gi-Oh