Board Thread:Question and Answer/@comment-79.134.58.18-20150310082205/@comment-7620285-20150313182205

technically you will always need all 3 resources since restoring your card's soldiers costs all 3 resources, but i agree gold is the most important resource. at some point it doens't matter because you will have surplus of every resource, but you basically use it all equally when upgrading buildings but can end up using a lot of gold when feeding hundreds of 1 N + arcana to a max level card.