Good news! Heroes are going to be a major element in Worlds of Magic. I know we've mentioned heroes elsewhere, but I feel the subject deserves it's own post. Heroes are going to tie into several other important game elements, so it's important to understand how they're going to work so we can get meaningful feedback and ideas.
First, there are going to be two classes of hero in WoM (much like in MoM). Heroes (duh..) and Champions. They will differ in a number ways. In fact we may divide them into more than two classes to create more basic levels of “hero” (demigods anyone?).
The first major difference between heroes and champions is the number of “points” spent on their initial stats. That's right! It's pulled directly from the D20 system. (Do NOT make a drinking game out of “Aaron said D20! Take a drink!” Someone will die of alcohol poisoning.) For those of you who don't already understand I'll give you a very brief explanation. In D20 all characters have a set of six basic stats (Strength, Wisdom, etc.) There are several methods used to select these stats. The most balanced (that is to say, least random) is the points system. You spend a certain number of points to increase the character's stats. The more points you start with the higher the character's initial stats will be. Heroes are going to start with less points than champions. As a result, they will be less powerful than champions out of the box.
The second difference between the two is going to their starting level and max level. The specific numbers aren't firm yet (some play testing is going to have to be done), but heroes will start at a lower level and have a lower max level than champions.
Heroes are all going to be base class characters (in this context “class” means job, fighter, thief, etc.), whereas champions may have prestige classes. Again, it's a bunch of D20 stuff. You can take a look here if you're interested:
D20 Classes
This is a fairly major difference as prestige classes offer a number of interesting abilities and powers.
That's enough about the differences, now on with the similarities. All heroes (including champions) can be equipped with a number of magic items. Some of them will be able to cast spells. They will cast from their own spell list and consume their own magical power. If they die in battle you may be able to resurrect them even after a battle is over. (Depending on what spells you know, how they died and what your enemy may have done to their souls...)
This post is running long and I think I've conveyed the basic idea. Feel free to chime in with questions, ideas and feedback!