Syntax: cast improve <object>
This spell enables a quest created object to contain more bonuses. The
object must be worth at least 750 quest points. Casting this spell will
enable it to hold an additional bonus comparable to the bonuses that can
be added to non-created items - ie: an extra +10 hitroll or damroll on a
weapon, an extra +5 hitroll or damroll on a piece of armour, etc. The
maximum number of quest points that the item can contain is also
increased by an additional 500, plus 10 per status point.