The easiest cards are worth a single point, the second deck is worth two and
final deck of cards are worth three points each.
Not exact matches
Successfully achieve the objectives laid before you, which usually involve fully exploring the
final area and killing some baddies, and good
cards will be added to what is referred to as the «campaign pool», which essentially mean a collection
of cards that get shuffled into the various
decks for every missions.
I have all but the
final set
of cards from the Naxxramas adventure mode, and these have proven valuable in improving my
deck, but in the grand scheme
of Hearthstone I have diddly - squat.