(N)EverQuest Scrolls

Lowest        -3000
scowls        -3000 to -750     (2750 point range)
threatening   -749 to -500       (250 point range)
dubious       -499 to -100       (400 point range)
apprehsive    -99 to -1          (100 point range)
indifferent    0 to 99           (100 point range)
amiably        100 to 499        (400 point range)
kindly         500 to 749        (250 point range)
warmly         750 to 1099       (250 point range)
ally           1100 and up       (assuming max = 1200,
                                  4200 point range)

Or possibly:

Below -801, scowls at you, ready to attack
-800 to -501, views you threateningly (300 range)
-500 to -101, scowls at you dubiously (400 range)
-100 to -1, is apprehensive (100 range)
0 to 99, is indifferent  (100 range)
100 to 499, is amiable  (400 range)
500 to 699, kindly considers you (200 range)
700 to 1099, views you warmly (400 range)
1100 and up, you are an ally

Enchanter spells modify factions for the enchanter:

• Alliance +100
• Benevolence +200
• Collaboration + 300

Positive faction hits are usually +1, negative ones -10. Faction quests (like those from Fenden Helter) may give 25 points.