Mythic Edition
The Mythic Edition series was an attempt by Wizards of the Coast to sell a high-end product aimed a collectors.[1] They included 24 boosters, with eight of them containing foil Masterpieces in not available elsewhere for a MSRP of $249.99.[2]
There were to sets with a Mythic Edition:
Especially the first release met with criticism from the public, which was partially addressed in the second release.[1] In the end, Wizards of that Coast concluded that there was definitely a market for high-end products, but that the exact shape of Mythic Edition probably wasn't the right model.[1]