Flawed
First: Why have the player mash on Mouse 1? Are trying to get people to break their mice?
Second: A.I. is very easily exploited. Simply have your cursor around their shield, lure it out to the edge, then jut before you make contact you drag your cursor to their head. Should work 9 times out of 10.
Third: Holy crap the grind. So much grinding dude. The Champ is just mercilessly hard and you don't stand a chance until you get the most expensive helmet and a decent lance. It's just so repetitive on top of all of this.
I look forward to a sequel improving on this concept.