Cards that require a selection should be resolved according to the difficulty selected
Amazon has it sitting at $47.68, but TCGPlayer is selling the same bundle for just $35.99
There are so many rabbit holes to dig down, but the short answer is best explained by the Example on the "A player attacks with a band consisting of a creature with flying and a creature with swampwalk
Nantuko Monastery One of the few manlands that let you pay two mana and get a 4/4, the playability of Nantuko Monastery is limited to the formats in which its legal
(Only double-faced cards can be transformed.) Number 54 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pauper, Timeless, Vintage Not Legal Formats Alchemy, Pioneer, Standard Rulings (9/22/2011) Moonmist causes any double-faced Human to transform, not just Werewolves