Galia

How tf do I unlock Galia without paying? It's the last regular fiend for me to unlock. I am currently on level 658 of the Hero Tour. All regular levels complete. The crate info pop up tells me that I have found all fiends available. I recently got the Landlubber style for her, but it didn't automatically unlock her like the game has when I've won styles for fiends that I didn't have yet in the past.