User blog comment:BlackWizardZeref/Fairy Tail Zero Chapter 10: Law Review/@comment-26287497-20150417012137

During the lifespan of Mavis she WON many battles or war becuase of her intellect and doesn't it complicate that she was the same age (maybe?) when she was inside lumen.

Mavis isn't dead yet because we saw a picture of mavis and co. (minus Zeira) during Warrod's flashback in the Sun village arc.

Idk about Zeira.