The pool of cards ("The Cube") consists of all of the best cards in Magic, so when you open your pack, it looks something like this: In the Cube, every pack will contain limited bombs, constructed powerhouses, some old school classics, and some new school brokenness
good for if the opponent has a big creature to answer Avatar of Might or if you need to protect something at sorcery speed
Among the 36 battles, there are four or five in each of Magics five primary colors, one or two in each of the 10 color pairs, plus one colorless battle and another thats all five colors
2 showcase commons or uncommons
Being able to create a Food token at any time makes it so that you can get them during your opponents turns, which would cause Merry, Warden of Isengard to trigger during that turn, somewhat bypassing its this ability triggers only once each turn rule
Additional information about booster box forgeries can be found here: How To Tell if A Booster Box is Fake and Fake 1st Edition Base Set Box