What kind of magic do you like?

That's exactly what I'm saying... Barbarians have plenty of strength, whether it's their heroes or their units. They don't need magic. But other races have to resort to using it...

Strength units aren't that strong. The worst are ogre mages: they can't cast anything useful, and they can't fight properly either. And why doesn't the "bloodlust" spell increase damage (there are no increases visible in the parameters)? Is it a glitch? A bug? Or something else? Please explain.