I obtained this yesterday, didn't know that is that good. Too bad this is not a spirit monster to return to your hand after it attacks. For people with 3 Mirror Walls and 3 Half Sluts however, it will be more useful if they can keep her alive for the duration of the duel.
if she attacks and survives then you can destroy one opponents spell/trap
I have only managed to get this SR from Mai so far, still relatively new. It is such a beast. Attacking a defense monster, attacking lp direct, or buffing with an equip (wicked-breaking flamberge to negate card effects) and getting that spell/trap removal is amazing. Don't have a deck built around it but it is a nice inclusion. Got a prismatic too!