Appropriately, they use ice spells. They ALWAYS freeze their target.Wikipedia posted:
Barbegazi are mythical creatures from Swiss mythology. A variety of dwarf or gnome, a barbegazi resembles a small white-furred man with a long beard and enormous feet. They travel in the mountains that are their home by skiing with their massive feet, or using them as snowshoes. The word barbegazi comes from the French barbe-glacée, meaning "frozen beard". Because of their penchant for high altitudes and low temperatures, they are rarely sighted by humans, but sometimes help shepherds round up lost sheep.