Each successful enhancement:
Increases weapon damage (and sometimes quality)Raises the weapon’s enhancement levelUnlocks rune slots at higher levelsEnhancement levels allow weapons to be upgraded multiple times, increasing their power as you progress. Early enhancements he a high success rate, but higher levels become increasingly risky.
Enhancing is never guaranteed. If an attempt fails, the weapon may lose an enhancement level and even a rune slot if one was unlocked. Because of this risk, most players only enhance weapons they plan to use long-term rather than temporary or early-game gear.
Rune slots are unlocked automatically as you enhance a weapon. Once a rune slot is unlocked, the weapon can be enchanted.
Enchanting weapons (Using runes)Make sure your weapon has a rune slotVisit the Runemaker NPC