*use $[upgradeweapon or upgrade] <itemid>
Upgrades an item's stat by 1. $upgrade will add +1 stat to the item. The cost for upgrades is Current Stat x $250. You can only use $upgrade up to 41-stat for one-handed weapons and up to 82-stat for two-handed weapons. 42-50 single-handed stat items and 82-100 double-handed stat items can be obtained from magic and legendary crates.
*Ex: $upgrade 97531