Shattered Kingdoms

Uber combos exists now. Using the reason that people will exploit is lame. Those people are going to exploit the system no matter what it involves. Lets not make the game less fun or fail to make a change because of a few bad apples.

I agree. This is a good idea, and really provides a deeper level of customization for characters without being overly complex in the method of doing so (such as skill/spell trees). I think this idea would go a long way towards making SK more diverse and interesting, since you could not only go looking for a sorc to round out a particular adventuring party, but a sorc with a particularly useful focus. The same is true for warriors, hybrids, and the other classes. It adds a new level of tactics without over complicating things, but also leaves open the option of sacrificing a bit of capability in a group by "settling" for a party member with a different focus who nonetheless has the base capability you're looking for.