Rite of the Opened Sky (Rank 4)
By sacrificing something of personal value and dancing a complex rain dance, the ritemaster can beckon great, purifying showers of rain to fall from the skies. This rain cleanses all Wyrm impurities, and can even heal wounds.
This rite works in much the same way as the Rite of Cleansing, but can encompass an entire caern and those within it. The ritemaster expends only one point of Gnosis to cleanse an area, but for every two additional points he spends, every character within the caern heals one level of damage — even aggravated damage. The difficulty of this rite depends on the level of taint, such as a tainted spirit’s Gnosis rating. Like the Rite of Cleansing, the difficulty of this rite can also be lowered by one if performed at dawn. Beings of the Wyrm and vampires suffer excruciating pain if exposed to this rite, though they are not cleansed or genuinely damaged. To use this rite outside a caern, the ritemaster must spend ten points of Gnosis — a feat only the most potent ritemasters of the Garou are capable of.
Source: Werewolf 20th