Now that Launch Parties are ongoing and more boxes have been opened, the borderless Imperial Seal's price has fallen down to $206.87, but it's still the most expensive card in the whole set
Yes, the white cards that draw you cards when your opponent casts spells cover the full range of only use in special cases to format staple. The best such card is Esper Sentinel, which requires opponents to pay mana to cast noncreature spells or you'll draw you a card
They also play a lot of underwater polo along the way
Each will feature new rainbow-colored icons at the bottom of their cards to denote their rarity, and are being added to help add more collectibility of cards in the game
Some of the rarest and most valuable cards, such as the Shichifukujin Dragon and the 1996 World Champion, are considered priceless and not for sale
Invasion of Tarkir B-Tier: Invasion of Tarkir's power is almost solely dependent on the number of Dragons in your deck