Excellent Items are unique powerful equipment items that have special additional options bound to it. Excellent items are a stronger item grade than normal grade items, having increased DMG or DEF! Excellent Mastery Items are the most powerful items in MU; however it will require a character over level 400 to start using them!
Some low level monsters also have a chance to drop certain excellent items...
Mastery Items are high level equipment items for tier 3 characters greater than level 400. Check the Mastery Sets or Mastery Weapons guide for more info.
Enhanced Items are high level equipment items for tier 4 characters greater than level 900. Check the Enhanced Sets or Enhanced Weapons guide for more info.