Really easy
Sorry but this game was too easy and made the whole point of progressing pointless. I beat the champion on my second try with level 9 equipment just by aiming low and then quickly moving up to the head. Also, i didn't really like this game's play structure, you are really meant to lose the 5th match over and over again forcing you to grind your way to victory. I got lucky with my play-through but others will not.