Both are nice additions to the Starter Decks already being offered from previous sets, and they're both built in a way that should be easy enough to learn from a newcomer's perspective
Nibelheim Aflame depicts the former war hero Sephiroth razing the protagonist Cloud Strife's hometown years before the events of the game
When it enters play, it can heal any other of your characters for up to three damage, which keeps heavy hitters like Maui or Captain Hook going for even long
Introduces the 'Vanish' mechanic that allows a character to be banished just by selecting it
This wont come together all the time, but I could definitely start my draft with one of those big win conditions then keep my eye out for this as a way to enable them
The Madrigal family makes up nearly half the deck, including the Casa Madrigal Location cards , and it's clear from the get-go the design process here was to make the deck work together much like a family