This battle only occurs if you chose to stay and fight in Tinto. She attacks with her Half Moon weapon, which does around 30-50 damage normally, but can also divide herself and attack with it to cause close to 150 damage to a column. She can also summon bats, which does around 150 damage to one character, as well. She usually attacks twice in one turn. Interestingly, she turns into a white bat upon defeat.