Aurelain completed an important update of his Heroes of Might and Magic V Skill Wheel, the final one until a new faction is added to the game. I will let him describe the major changes:

"The main feature is that skills are additive. You can now actually build your hero. And, more importantly, skills that are inaccessible due to game restrictions, are hidden! So you have a clear view of which skills don't go together."

If you look at a basic skill, you will find at the bottom of the pop-up the probability of the selected hero class to get that specific skill. The update has been applied to all five languages.