Frost-biter

Weapon (battleaxe), uncommon

This serrated +1 battleaxe is carved with runes of vengeance and cold. Three times per day as part of an attack action, the wielder can trigger the runes so that the next attack that hits with Frost-biter within the next 1 minute deals cold damage instead of slashing damage. Once this ability has been used, the wielder must wait 1 minute before it can be used again.