Rite of the Opened Sky (Rank 4)
The rains summoned by the caster of this rite purify the Caern and the Garou within it. These showers can wash away all Wyrm impurities and even heal wounds. When performing the rite, the caster must also sacrifice something of personal value.
System
This Gift has the same effects as the Rite of Cleansing, but it encompasses the entire caern in which the rite is cast. In addition, for every two points of Gnosis the character spends, each Garou in the caern heals one Health Level.
Source: 2nd ed Werewolf Player's Guide