ShibuyaCloths Math overview (page 1, post 5) is really helpful.
The first 3 items on the top are the 3 Decks, and on the left you see the crafts/ fights.
For example, if you already have Molina (the purple skunk), you only have to check out the requirements for 'Trade Cards' and 'Marnie' (9 Enchanted Magic Decks, 10 Bountiful Land Decks and 10 Army of Knights Decks)