The card crafting system in Eternal involves the use of Shiftstone to create brand new cards. Shiftstone is obtained in 100 intervals whenever you open a pack and by destroying unwanted cards for differing amounts of Shiftstone based on card rarity.
Uncraftable and Indestructible Cards
While most cards in the game can be crafted and destroyed there are exceptions, most notably all campaign cards and the first copy of some legendaries that come included with all accounts. Indestructible cards are marked by a bronze bordered diamond in the collection screen's quantity tracker.
Each card has a fixed crafting and Destruction value, based on rarity and regular/premium versions. Other factors, such as card set, do not affect cost.
|Rarity||Crafting cost||Destruction reward|