Card Evolution involves fusing two level 10 cards into a more powerful version of that card, with a new max level of 15. Evolved cards will often have increased Cost as well, though there are some exceptions. Only One Star through Four Star cards can be evolved normally. At times an event will be present allowing you to evolve Five Star cards. Once evolved, your card will be assigned a random D Rank skill. This skill can be changed by using Skill Shuffle.
In order to evolve cards you must ensure that both of the cards involved in the evolution have been removed from all of your decks.
|Number of Stars||Cost to Evolve|
|One Star||120,000 gold|
|Two Star||160,000 gold|
|Three Star||200,000 gold|
|Four Star||300,000 gold|
|Five Star||800,000 gold|