Conflux will follow the new publishing standards set by Wizards of the Coast in Shards of Alara. That is, mythic rares will be included in one out of every eight packs. Intro packs will contain 41 cards and one booster pack, and will replace preconstructed theme decks. This set will also contain more prismatic cards, including one named after the set, which allows you to get 1 card of each color from your library and put them into your hand.