A Revenant's technique that unleashes the resentful sorrow of slumbering vengeful spirits.
This imparts the will of vengeance upon not only the caster but also surrounding allies, transforming all into a temporary immortal legion.
Near-death companions rise again in pain and, like cold specters, begin a march solely for vengeance.
When the battle ends, they may fall again. Perhaps into an even deeper abyss than before.