Thoughtseize gives the user an insight on the most likely play patterns for the upcoming turns, and can be used proactively to either discard an answer to a threat, disrupt the opponents curve, or strip a vital combo piece out of the opponents hand
While I personally have always preferred Reshiram's design, I actually think Zekrom looks a little cooler here
This means it will often have a pretty elaborate, special pattern on the holo foil, but the cards art will just look like a standard cards picture with no shininess or pattern at all
However what dyl and others are pointing out is the market/social reality
For OTJ, there are some important changes to Play Boosters: You have a 20% chance to hit a List card this set, but for this set, The List is the Special Guests and the Big Score subset