Wow !? So, even if I don't yet have the prerequisites to train in Blademaster, for example, I still get the advantages of having Blademaster if I equip an item giving me boosts for it??? I guess I have to rethink what I sell.
On a related topic, there are also items giving resistances to poison, acid etc. So, is it likely that I will get better items later so I could sell what I have now if I am getting along without it.
Same question for the special abilities items. Will I ever get a better ring than Archer's Band? My problem is that I temporarily need to equip a certain item for now (say resistances to poison etc.) but might later want an Archer's Band type ring. Can I sell any Archer's Band rings I have now, confident that I will get better later? This is a general question for many special boost type items (Blademaster, etc.) I don't need a list just some general trends.