The temple of Yevon teaches that the monster is a physical manifestation of mankind's sins, and following the temple's teachings and atoning could purge it
The job select ability, which appears only on Equipment cards, represents this system's presence in the series
While the official Pre-cons for the Final Fantasy set offer excellent flavor from different eras of the franchise, there's nothing like tailoring a deck to your own needs and preferences
The other big bonus was that you got to see their entire deck, which back then taught you a lot more than it does now due to a lot of people playing their own homebrews and a lack of other ways to take a look
From Elesh Norn, Grand Cenobites master scheming and manipulation to Vorinclex, Monstrous Raiders primal strength, these cards really cover the bases when it comes to otherworldly dangers