[quote=@Fractured]
<Snipped quote by Zeal>

Who is Erza?
[/quote]

Erza is my sister and latest incarnation. She was keeping the realm you were fighting Acnologia together. She attempted to cut herself from her mark that held us together and was severely damaged. The only thing she could do at the time was to keep the realm from breaking and letting Acnologia from escaping.