User blog comment:Jan10KH/Brave Frontier Couples/@comment-24933256-20140602145237/@comment-74.83.63.130-20140608042804

Actually, It never says that she died herself, she just gave her wings to Vargas, and (not word for word, but close enough) "When he came to, she was nowhere to be found", and yet, if you read her new form description, it that she was wounded severely, but then found a new power, and as such, got a new evolution. So a Vargas x Lava could develop and still be legit