[@Shoryu Magami]

 I can appreciate what you deem as a "broken" character. There was once a time when I use to delve into the more powerful range of characters. Of course, it was a lot easier to deal with on my original role play medium which was a text based real time chat based on the Battle.net servers when games like Warcraft 2 and Diablo 2 LoD were big. On any accord, if it works for you there is no problem there but unfortunately I am looking for something more realistic. 

Essentially, the way the D&D combat system works is that you'd essentially make a character via the terms of the book rolling up some stats, assigning those numbers - determining your armor class, et cetera. All of which are available through the book or if you want to talk about here that is okay too. Then during actual combat it is just simply you roll a d20, does your check surpass the armor class, if it does you swing and describe your attack. Then, if you hit you have the opportunity to make a reflex save to avoid that attack if it is a physical attack - something of a saving throw. Or if it is some sort of poison dart you'd make a fortitude save. It seems complicated but it is all on a d20 system. 

As for the "classes" you speak of, those too would be available from the D&D 3.5 player's hand book. There is an entire section of starter playable races and classes. Of course, there are a variety of supplements that add a variety of races and classes as well. If it is something you are interested in, the system works out fairly well.