So the basic question you're posing is, "Is the combat fun?" And i can see it becoming more fun with further development. In the current state, not really. Though that is really a lack of visual stimulation i think. The concept is SOLID though, I have seen it done in a few little flash games and I really think you're on the right track to improving it. Would love to see some kind of special attacks beyond just the standard, however, beyond that i think it will really just be how you handle the visuals! Overall great job! Keep up the good work!