In "Diablo 4", the blacksmith is an important NPC. He can maintain the durability of the player's equipment. Players who want to know where the blacksmith is can see why the blacksmith cannot be found in Diablo 4.
When the main plot progresses to a certain extent, we can reach Kiowasha, where the blacksmith is located.
The blacksmith can disassemble equipment, and can also upgrade our equipment and armor (excluding jewelry). Upgrading weapons can increase damage, and upgrading armor can increase armor.
Although decomposing equipment can provide transmogrification, it is recommended that you sell the early equipment for money, because you are really short of money in the early stage.