Board Thread:Questions and Answers/@comment-221.3.99.183-20141121123316/@comment-24986371-20141121124625

it's better to save these gems, and expand your unit slots or rare summon to suit your needs, this also includes expanding item slots considering the cures and others you will need to stockpile in the future, as for evolution, i am not too sure , so you have to ask some others guy here for advice on that.