You can Engrave equipment to raise its basic attributes.
All items except rings and necklace can be enhanced: weapon, glove, helm, cuirass, belt and shoes.
How to Engrave
Go the Armory and choose Engrave, drag equipment to the box to start.
Engrave requires gold and stone or Engrave Talisman and stones. The basic attribute of equipment will rise while its quality will remain unchanged. You can check the stats and engrave again if you're not satisfied with what you've got.