Here's what you can expect to find: 1 Rare or mythic rare 1 Mystical Archive card (uncommon, rare, or mythic rare) 1 Lesson card (common, rare, or mythic rare) 3 Uncommons 9 Commons 1 Common card replaced by a foil card of any rarity* in 1 out of 3 boosters (*This includes global Mystical Archive cards in all non-Japanese Set Boosters, and both global and Japanese alternate-art Mystical Archive cards in Japanese Set Boosters.) In Japanese Draft Boosters, 50% of all Mystical Archive cards will have the aforementioned alternate art and frame
Against control decks, I always sideboard in more creatures and take out the majority of my Auras
Even when you do them both for five the Shreikmaw has comparable evasion, a not wildly lower amount of power and has no upkeep costs
For this reason, Pokemon 151 is easily one of the best Pokemon packs on shelves right now (assuming you get lucky enough to find the rare and valuable packs)
Amonkhet is the newest set, and is the first in the new block, so currently it only needs one small tray