Olympia: The Age of Gods PBEM (May 4 1999)
Usage: USE 9193 <storm> <piety> Required piety: as given (variable) Time to learn: 28 days. Time to use: 3 days. Required to use: Holy symbol
Invest piety in an existing storm. The storm must be in the same province as the caster. Each point of the priest's piety used will add two points of piety to the storm's strength.