Sphere use

Official Information

'SPHERE USE'
Crystal spheres are items which contain spells. If you have the 'sphere
use' ability, it is possible to use such items via the 'empower' command.

Sphere use is available to:
Mages  : level 13. Any Alignment.
Clerics  : level 13. Any Alignment.
Thieves  : level 13. Any Alignment.
Warriors  : level 13. Any Alignment.
Ordained  : level 13. Any Alignment.
Rangers  : level 13. Any Alignment.
Shamans  : level 13. Any Alignment.