A friend of mine got her at lvl 28 (x bower) at csro. No gear (only what he got as a drop) and with his GF buffing him as cleric. So it's not imposible and not so hard, the main thing is to be able to lure her so noone come to KS u. Which in our server in csro is pretty easy

Also his GF got one time the kill t isro with 29 glavier, so it's absolutly possible.