evigishki_neremanas
This monster is Evigishki Mind Augus after unleashing the Ice Barrier's mirror, which is made possible as she's the Speaker for the Ice Barriers.
See also
* Speaker for the Ice Barriers
* Gishki Ariel
* Evigishki Mind Augus
* El Shaddoll Apkallone
* Ariel Priestess of the Nekroz