It is said that any fallen hero on whom the feather is lain upon will rise again to do battle once more.
Training Utility: Wizards in the Graveyard can be revived by consuming a Phoenix Down.
PvP Utility: Any PvP team that is defeated will require reviving. When staked in a PvP queue, if that team loses a fight, it will automatically heal them and remove the queue cooldown and revive requirement to be picked for another match. Dead teams will not be able to seek out challengers.