Board Thread:Game Discussion/@comment-50.131.44.49-20130829003732/@comment-76.248.30.211-20130830031403

Also, if you choose to revive using the one-time 12 gem option when you are defeated, all of your knights and friends knights are replenished to full energy and immediately ready to rejoin the battle. This might be necessary if your have a lower level knight, especially if you do not have many high level friends to use again right away if you only refill your epic energy for 10 gems.