For starters, that includes the new Mickey Mouse - Brave Little Prince (Iconic), which's already selling for over $1000 on resale sites like TCGPlayer and eBay, while its new "Iconic" pairing, Minnie Mouse - Sweetheart Princess, isn't exactly cheap either, and currently fetching around $865 market price
That is written in the Reminder text for Undying, but the actual text for Undying in Comprehensive rules reads: When this permanent is put into a graveyard from the battlefield
Unlike eBay, Cardmarket is built specifically for trading card games
They'll choose their best, obviously
While the MSRP of that product was set at about $120, this promo card will get you over $20 back alone, not to mention the 16 booster packs included, which make up the rest of the cost