[soltakss]

One of the way I get over this is by limiting the number of skill/experience rolls the PCs get. I do this by using Hero Points as Experience Points. So PCs can choose where to concentrate their skill attempts and tend to focus on their own speciality areas.

What I don't do is to restrict PCs by caste/profession, unless they are forbidden from learning a skill for specific reason. So, healers may be forbidden to learn combat spells/skills, for example. There are too many examples in Fantasy fiction of wizards being good in combat and fighters being able to use some magic. It also doesn't make much sense from a background point of view, unless there are in-game reasons why the restrictions are in place.

If magic-using characters are handled well by the GM they spend all their time scrabbling around for POW or other magical fuel to gain more powerful spells and find that the other PCs outstrip them in other areas.