User blog comment:FairyRaven/Fairy Tail Chapter 344: Wizards vs. Hunters, Review and Commentary/@comment-5598380-20130719082836/@comment-7418318-20130719092743

That doesn't stop her from using the weapons. While they are a bit oversized now, Erza should have enough strength and skill to still use them effectively (remember that giant sword she was wielding in one hand, with another sword in the other hand, when she came for Jellal as a child).