Theres 40 exclusive cards, 12 of them mythic
1x Double-Faced Uncommon/Rare/Mythic 1x Single-Faced Uncommon/Rare/Mythic (1 R/M in every pack
Individual elements, such as the set symbol, are printed on a so-called top layer. In other words, they are printed on top of existing layers
The sideboard cards to hose the graveyard decks and their answers, often the sideboard cards from the graveyard decks, have by far the highest impact on the game of any cards in either 75
The non-negotiables for your starting hand are at least one basic land, one fetch land, and one low-cost creature, with the rest of your hand being more fluid, again, based on how aggressive you like to play