Alongside the standard mechanic that restricts players from opening packs or Wonder Picking or, now, trading too much without spending real world money, the feature was also introduced with an extra restriction called Trade Tokens
Black offers you so many options for exchanging resources for power, and Toxic Deluge offers an extremely efficient sweeper at the cost of some of your life total
According to the Collecting The Lost Caverns of Ixalan article from Wizards of the Coast, Set Boosters should have approximately 2-3 Jurassic World cards per box, while Collector Boosters should have one card per pack
I would not want to put the effort into loading all my cards into a database only to have Wizards shut it down
Glancing at your average Magic card, especially one not found in Magics beginner-friendly sets, is intimidating to say the least, as the cards can be filled with enough jargon to make the game seem incomprehensibly difficult