Spirit of Redemption
Spirit of Redemption is a Priest spell in the WoW Forever client.
Upon death, the priest becomes the Spirit of Redemption for 15 sec. The Spirit of Redemption cannot move, attack, be attacked or targeted by any spells or effects. While in this form the priest can cast any healing spell free of cost. When the effect ends, the priest dies.
Data from the WoW Forever client, build 1.60.1.70862, extracted .