Secondly, some special weapons are not legendary, because the weapon type is not the weapon strengthening type you can point out. For example, the artifact is like this. In this case, you can touch forging and take forging strengthening drugs (of course, you can also use the console) to obtain a stronger forging effect. If the effect is strong enough (but it is usually very difficult to achieve without MOD or host), it can also be strengthened to legend (this legendary prop is usually BT).