Although you will get a nice little prize or just something for beating the demon walls from the guild...i hate backing down to certain monsters and will find a way to beat them no matter how long and that first demo wall was tough but is beatable.

You just have to do a nice sized quickening on him to start off, get him down to a little below half health and hes cake from there.

Toss on a few immunities to blindness or sleep or whatever it was he casted, and it was cake.