User blog comment:Wrath022/Chapter 516: The Truth About Enchantment, Review/@comment-7418318-20170109125718

The chapter is out on mangastream if anyone still cares.

Anyway, I just noticed a point which I didn't before and which nobody said anything about yet.

Did Erza just try to actually kill Irene?

She launched a full-force sword attack on Irene's head. A normal Human would have been killed for absolute sure by that strike (probably split down the middle even). You don't attack the head with a sharp object unless you really mean to kill or at least seriously maim.