Full list of all 10 Book of Demons achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Find all of Warrior's Cards
Find all of Mage's Cards
Find all of Rogue's Cards
Defeat the Cook with any hero
Defeat the Antipope with any hero
Defeat the Archdemon with any hero
Let the Healer heal you 30 times
Buy content of the Magical Cauldron for the first time
Charge your cards 10 times at the Fortune Teller's
Identify your first card with Sage