Note that since you'll need a lot of duplicate cards to unlock an existing card Lost Ark Boosting, it's a sensible idea to not feed a duplicated card only to increase its XP level. Instead, it's far better to feed it XP cards.
These XP cards just like you gain other cards: when you complete different activities in the game. However, they also have an unpredictability system, with the rarer XP cards providing more in XP (up up to 9000). Start your Card Catalogue screen and click the "Book" tab. You'll be able to see all the cards used in the game, grouped under different books.
Card Books are basically an upgraded version of the Card Set. Instead of giving power bonuses only when they are equipped (like cards in Sets) they give much less powerful but permanent, passive bonuses without having to purchase any kind of equipment.
Since they are collectibles it is no surprise that a Card Book is in essence a collection hunt. There are only 27 set of cards available, however there are it's 173 Book Books! All 27 decks in Lost Ark provide very useful bonuses and stats. They're wonderful in their individual ways however, some of these Sets are more valuable than the others.
This Card Set is ideal for PvE support builds and for all types of builds that is GvG-based. It can reduce the number of potions that you'll be using in raids. This will aid in saving gold. It'll also counter as well the Cursed Doll engraving effect Lost Ark Gold for sale, which decreases healing by 25 percentage. It will improve your survival within the game by a substantial amount.
