Hero skill tree.

I believe the first point is the most important, as the second point may not be feasible at all. We don't always get exactly the 8 skills we want.

There's a catch here... We all know from experience that sometimes we have to take an unwanted skill just because it's followed by several very useful skills... For example, I need the Diplomacy Expert skill by level 5 - and for that, I have to take something like Eagle Eye - and there's no way around it...

At the start, the hero has 2 skills. Out of the remaining six, we absolutely need to get three specific ones, and the rest can be anything (of course, we'd like them all to be specific, but that's not always the case). And imagine that most of the available combinations will contain skills that we have forbidden (probability theory). All these combinations will be ignored by the program.

Banning skills will simply cut off many chains, one of which may be the only necessary one... So, is it worth introducing a ban at all - we will increase the time to find the right combination many times over. Although some believe the opposite...

So, we'll have to wait forever... :)