[1] Unless otherwise specified, this spell works against
items/beings/spells from different secular colleges at -4.  For
example, a Fire Mage is at -4 to detect Animal magic.  Similarly, a
Water Mage Scryguard is four units weaker against an Fire magic
Divination spell.  (In this case, this cancels out; the Divination
spell would \fIalso\fR be at -4 to penetrate the Scryguard!  These
distinctions becomes important when dealing with, say, the College of
Knowledge, which is \fInot\fR acessed a -4 penalty when trying to
penetrate another college's defensive magic, and the College of Fear,
which is not acessed a -4 penalty when blocking another college's
scrying magic.)

[2] Staffs only work for practitioners of the college they were made
for.  For example, a shadow magic staff is worthless to a dark mage.

[3] Powerstones will only work for the college that made them.  For
instance, a College of Fire powerstone may only be used by a College
of Fire mage for a College of Fire spell.  "Dedicated" & "Exclusive"
powerstones will work only in items of the College.  Note that various
Colleges use various things for "powerstones."

[5] Note the restriction that one may only use this spell against a
spell one knows.