They arent skills you can learn, and because of that, I have no way to learn what they do.
You can learn what skills do by trial and error. Use
iZakaroN's SaveEditor to get yourself at a high enough level to max Know Creature, and maybe bump up agility (at least). Next, get a basic weapon and save in front of a monster (or a group) after running your mouse over it (to set its stats). Now kill the monster, keeping track of the damage done per hit (with a new character, Jake has lots of hit points, and will give you a statististically significant data set without too much re-loading. Next, try
DAD's item editor to add one or more effects, then re-load, re-kill the monster and keep track of the damage. To test Health/Mana Drain, you would have to take some damage or run down your mana first.
Try that for awhile, and you should understand why no one has done up a comprehensive list for all the different skill levels. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />