Location: Plitzerback Wetland, abandoned village that leads the path to Lhitwerg Woods
If she doesn’t appear on the village then you may need to things below
Defeat Stheno first
Talk to a soldier at Lohgrin, who will tell you about a woman who found a village. Go to Plitzerback Wetland and then talk to other soldiers near the entrance (from Zaphgott Moor).
Recommended Level: 50-55
Recommended time frame: After meeting with Mayvin at Lohgrin
Property: Apodous, Fiend
It’s stronger than Medusa and Stheno. Make sure not to let your partner armatize when she’s using any of her gorgon’s attack (L2 + L1; need battle action equipped), keep them in normal state and tell them to attack from range. You can simply armatize with Mikleo and use Binding Vortex from range. This way you’re safe from her petrified attack.