As a thank-you for saving Ermina, Mercphobia gives the group information on the rest of the Five Dragon Gods. And while they’re in the town of Tekka, they encounter someone who looks exactly like Erza...
but being a wood dragon, 
maybe they're weak against fire?
Aber ein Holzdrache …?
Dann ist seine Schwäche womöglich Feuer!
Pero si es de madera
mas sendo um dragão da madeira,
talvez seja fraco contra o fogo?