Purity of Spirit (Rank 3)[]
Many Galliards relate stories describing the werewolves’ weakness to silver as a kind of chiminage - the price Luna extracts from her children for the gift of Rage. Using this Gift, the werewolf can, at great cost, briefly shield himself against silver’s damaging power with his own spiritual energies. A Lune teaches this Gift.
System[]
The Garou spends a number of Gnosis points, and immediately receives this many automatic successes to soak damage from silver, even if she has no dice to roll. The effect lasts for a number of turns equal to the Gnosis spent, not including the remainder of the turn in which it was activated. The Gift does not take an action to activate, and indeed can be activated immediately if the Garou has been struck by surprise with a silver bullet or blade to help ameliorate the damage... as long as the user hasn’t spent any Rage that turn, of course. This Gift cannot be active at the same time as Luna's Armor; whichever is activated last cancels the prior Gift.
Source: Book of Auspices