For some reason I can't battle Cynthia right now, even though my DS is set to summer (she's battle-able everyday in spring & summer right?). She's there in her villa in Undella, but when I talk to her she doesn't offer to battle me. She keeps talking about her swim suits...
She wont battle you during summer. Even though shes in the house during summer she wont battle you. Shes there on vacation for summer and will only battle you during spring. So if you want to battle her, you'll have to change the date to spring. Source: http://bulbapedia.bulbagarden.net/wiki/Cynthia
