Skill Objects modify a character's effective skill rating if the skill is 
known and the object is worn/equipped. 

^ Level      ^ Object       ^ Bonus          ^ Location        ^
| 91    | essence of dao    | 30% Polearm        | Utu'ln Tower (dao)|
| 91   | Belt of the Ages | 20% critical hit, 2 strength | Ashlish (chests) |
| 91   | Plaited Ring     | 30% True Healing     | Castle Tramontane (dungeon?) | 
| 91   | a fire opal ring | 18% sword | Ashlish (chests) |
| 91   | Courage | 15% lacerate, 3 svmd, 10 will | Ashlish (chests) |