Don't think I've seen this before. What do you call this kind of bonus and is it common? Any value or just 35k pawnshop material?
Thanks.
Steel-capped mesille runestaff
+15
The harmonics generated tell you that the runestaff allows a caster to occasionally focus their magical prowess for a single cast, temporarily granting +10 bolt Attack Strength or +6 Casting Strength.
The runestaff resonates with your voice, indicating that it enhances its owner in the following ways:
It provides a boost of 3 to Armor Use Ranks.
This enhancement may not be used by adventurers who have not trained 21 times.
The runestaff looks to have quite a few charges remaining.