Modern Master 2015 Booster Box

BOOSTER PACKS
Each booster pack includes 15 cards to add to your collection—and you can expect one of those 15 to be a rare or mythic rare. 
Set Name: Modern Masters 2015 Edition
Number of Cards: 249
Languages: English, Chinese Simplified, Japanese
Twitter Hashtag: #MTGMM2015
Release Date: May 22, 2015
Magic Online Release Date: May 28, 2015