This is the first US set in the Grimm cluster (first set released in the US and first legal competitively). This set contains many cards that are staples of top tear decks. Carmilla and Thunder just to name two.
Not a "money" set like the second set but still worth while to snag while its available.
Other questions about the set can be answered here: http://force-of-will-tcg.wikia.com/wiki/Crimson_Moon%27s_Fairy_Tale
Not a "money" set like the second set but still worth while to snag while its available.
Other questions about the set can be answered here: http://force-of-will-tcg.wikia.com/wiki/Crimson_Moon%27s_Fairy_Tale