Found this on Robonosto's blog site today, interesting look at magic resist rates & the effects of elemental staves/elemental skill on them.
The unbearable triteness of preening: On magic resist rates
Also, the original blog post referenced is here (light the Elmer signal!): http://lodeguy.blog69.fc2.com/blog-category-17.html
Cliff Notes Summary:
- Below .50 "base" magic hit rate:
- HQ staves co-aligned in element to that of a direct-damage magic spell (and probably other types too) appear to provide a constant increase of .15 magic hit rate
- NQ staves co-aligned in element to that of a direct-damage magic spell (and probably other types too) appear to provide a constant increase of .10 magic hit rate
- 1 point of elemental magic skill (from equipment alone?) corresponds to an increase of about .005 magic hit rate
- Above .50 "base" magic hit rate:
- HQ staves co-aligned in element to that direct-damage magic spell (and probably other types too) appear to provide a constant increase of .30 magic hit rate
- NQ staves co-aligned in element to that of a direct-damage magic spell (and probably other types too) appear to provide a constant increase of .20 magic hit rate
- 1 point of elemental magic skill (from equipment alone?) corresponds to an increase of about .01 magic hit rate
- A magic hit rate penalty appears to exist when targeting monsters higher level than you
It's a good start, but I'd really like to see more testing with higher elemental skill/INT levels, especially the 320 skill/120 INT barrier that's considered the standard for HNM nukage.