Talk:Items/@comment-25077173-20141008033033/@comment-24076773-20141008092033

For a perfect evolution you have to level up both cards to the max and then use the arcana at the evolution. A certain percentage of the cards atk, def and souldier cound will be carried over to the new card in any evolution and the arcana increases that even more by 5%. It's mostly interesting for getting the max soldier count possible because it can't be increased with arcanas afterwards, while atk and def can.