User blog comment:Miskos3/Fairy Tail 519: Show Me Your Smile, Review/@comment-29778526-20170128034831/@comment-7418318-20170128082634

Natsu was able to get at least one actual wound in on Motherglare I think, certainly enough to make him/her/it cry out in pain.

But that aside, I attribute that wound to Wendy, not Erza. While Erza might have swung the sword, it was still Wendy's magic that hurt Irene.