You can cross-check these against a list of set codes
Thanks to its triggered ability, any deck built around it should have plenty of cards that make your opponents draw, and those same cards should be balanced out with cards that punish your opponents for drawing cards
If you're a new player, even better, a lot of these cards are cheap and cheap but potent cards are what every new player needs
The world is a dangerous place, television teaches us
About 85% of those packs will have these as the final three cards: nonfoil rare EA, nonfoil rare showcase/borderless, foil EA/showcase/borderless rare
Of the over 2,000 decks on EDHREC for Derevi, Empyrial TacticianDerevi, Empyrial Tactician, the most popular Bant commander, 23 are running Pacifism and not Crystallization, a particularly strange decision since Crystallization allows you to use Derevi's ability to exile the creature after locking it down