This set will introduce new card types called Locations, along with introducing new franchises to the series
the best reason I can see to play either is the presence of the other, so cutting both seems sensible
You generally shouldnt bother, though its going to be tempting
The pre-made deck here is all built around strong glimmers that are able to challenge (Mulan's "Reckless" ability forces her to do this each turn if she's able) and gather Lore quickly
According to the official Collecting Final Fantasy x MTG article, the rarity distribution is: An uncommon FCA card 63.25% of the time, A rare FCA card 29.75% of the time, or A mythic rare FCA card 7% of the time Keep in mind that you only find an FCA card in a third of your Play boosters
Cards have to be evaluated on their own merit in Limited, so synergy-based cards are less valuable than in Constructed