Okay, here is how to get almost every skill with a pure strength build (And maybe 1 wisdom?)
1. Get a Dark Endur
2. Get a Bazzar Staff
3. Get a Skull Belt
(Anything to add to your intelligence/wisdom is helpful)
Now, you can get most of the skills with the added stats these items give you!
PS. After you buy the needed stuff, just resell to get your money back.