In addition to 11 Common cards, these draft boosters will have three non-legendary Uncommon cards, two legendary Uncommon cards, and 2-4 cards of rarity Rare and higher, which will include at least 1 Mythic Rare card
Do note that these tables do NOT account for the different prices of packs, a problem which I will rectify soon
Imprinting the card is only a minor drawback, considering that you've already gotten your use out of cards like Devourer of Destiny from your hand, and you play enough copies of your others like Ugin, Eye of the Storms that it's not so bad to lose one
Infect's poison counters also made lifegain meaningless, which was devastating for some control decks, as they typically ran lots of lifegain cards to defend against aggro and burn decks
Oh and a huge, trampling 7/7