Guides · Jewels

Jewels and item enhancement

Jewels are MU's enhancement currency. Drag a jewel onto an item in your inventory (or use the Enhance screen) to upgrade it. All rates below are the current server configuration for regular accounts.

Jewel types

Jewel Used for Success rate On failure
Jewel of Bless upgrade items from +0 to +6 (+1 per jewel) 100% —
Jewel of Soul upgrade items up to +9 (+1 per jewel) 40%, items with Luck 65% +7 and +8 items drop to +0; items below +7 lose 1 level
Jewel of Life add 1 level to the additional option, up to 7 levels 60% additional option resets to 0
Jewel of Chaos ingredient for +10 and higher upgrades, wings, tickets per recipe —
Jewel of Creation ingredient for Fruit crafting Fruit crafting currently 0% —
Jewel of Harmony add a Harmony option (gold line) to items, including Ancient items 80% item unchanged, jewel lost
Lower / Higher Refining Stone upgrade the Harmony option 100% —

Jewel of Bless also fully restores durability of pets (such as the Fenrir-type wolf). Time-limited items cannot be enhanced.

Additional option and Luck

Option Effect
Additional option (Jewel of Life) on weapons +4 damage per level, up to +28
Additional option on armor +4 defense per level, up to +28
Additional option on shields +5 defense success rate per level
Luck +5% critical rate; +25% success with Jewel of Soul; +10% when combining at the Chaos Machine

+10 to +13 with the Chaos Machine

From +9 onward you no longer apply jewels directly; combine at the Chaos Goblin (Noria 180,103), "Upgrade" page. Ingredients: 1 Jewel of Chaos, N Jewel of Bless and N Jewel of Soul, plus the item at its current level.

Upgrade to Item in Jewel of Bless Jewel of Soul Zen Rate With Luck
+10 +9 1 1 2,000,000 40% 50%
+11 +10 2 2 4,000,000 30% 40%
+12 +11 3 3 6,000,000 20% 30%
+13 +12 4 4 8,000,000 15% 25%

A Chaos Machine tax may be added to the Zen cost. The server's item level cap is +15.

Enhancement tips

  • Use Jewel of Bless up to +6 first (no risk), then switch to Jewel of Soul.
  • Prefer items with Luck for +7 to +9: 65% instead of 40%, and a failure at +7 or +8 sends the item back to +0.
  • The total + level of equipped items counts for the Enhancement Race card, and Jewel of Life levels count for the Cultivation Race, in Server Launch Events.