Bilwis - Demonic faeries, these German elemental spirits are found in cornfields where they are known to either shapeshift into enormous destructive balls to roll around and flatten the crops, or steal grain in the harvest season by assuming the form of a whirlwind. When they are stealing grain, they can be called out or shot at, and if this is done then the spirit will die in a year, but if it notices its attacker first, they will die instead. Sowing from the outside protects against Bilwis.