Item Repair (Diablo I)
Item Repair is the warrior class skill. It allows the player to repair damaged items without returning to Griswold. It also doesn't cost any money, but permanently reduces the durability of an item. This makes the skill rather useless beyond the very first levels when the player might change gear on a regular basis. However, this penalty can be offset in the Hellfire expansion due to the presence of items such as blacksmith oils, making it actually somewhat useful.