Id avoid some retailers that sell them at full price (or more!) and instead look for places selling these 12-card packs at a discount
The Final Fantasy Bundle, containing nine Play Boosters, two traditional foil extended arts, 16 foil full-art basic lands, a spindown life counter, two reference cards, and a storage box is also available for preorder, as is the Starter Kit, which contains two precon decks for Standard play
The Madrigal family in particular are well represented across both Amber and Amethyst colours: Felix, Julieta and Mirabel all appear in Amber, with Bruno, Dolores and Luisa in Amethyst, for example
The two marketing cards from the two packs are used as immediate ink
If you're looking to get your hands on the set, you're in luck
8 Perdita - Determined Mother (Enchanted) - $138.05 One Perdita To Rule Them All