I would've sworn I've seen her in there, but she's not there now.

Pretty sure she was there for an event ages and ages ago. I haven't seen here there in years.

bummer...I'm going through the achievements and notice one for defeating her; they should bring her back sometime :)

thanks anyways!

She actually used to be a default opponent waaaay back in the day. That was how you got the Malerias Cursed Arm Bangle. But the powers that be decided that our pets probably shouldn't be beating up gods, so they retired her.