Senior game designer Daniel Holt explained that the decision to have each deck themed around one game allowed the team to "dive deep into the lore of each, capturing even more beloved moments from across the games storyline." When asked exactly how Wizards of the Coast came to choose the games that would be included in the crossover (I'm slightly disappointed Final Fantasy 9 didn't make the cut), Holt explained that Final Fantasy 7 and 14 were the clear picks due to their popularity, but that Final Fantasy 6 and 10 were chosen partially due to how many fans of those games were among the Wizards of the Coast team
When it comes to sideboarding, I think the most obvious cards you can cut are as follows: 1-2 Exhume or Animate Dead Going down to ten reanimation spells is okay, and which you cut depends on the matchup
Zada, Hedron Grinder Another fantastic deck from Tomer Abramovici
While Rapunzel, Letting Down Her Hair and Tangle are both fairly underwhelming, Aladdin, Street Rat is a decent three-drop that drains for one lore, but more importantly, can be used to shift into Aladdin, Heroic Outlaw