A Knight of Light, from a map in the online game... Usually (if, for example, there are 4 players), one plays as Rampart (with Jellu), another as Tower (with Dragon), another as Inferno (with Xeron), and someone else as Stronghold (with Kilgor). In the standard scenarios (which are originally on the game disc), they are, of course, disabled.
Downloading maps is, of course, a good thing, but most of them don't appeal to me. And I don't like it when there's something non-original or non-standard in the game. In this case, I don't like it when there are heroes with special abilities, which is what we're talking about.
Added 2 minutes later
Some of the special heroes have insignificant abilities, but still. It's better to either play with only special heroes or without them.