User blog comment:IamJakuhoRaikoben/Chapter 489: Universe One, Review./@comment-4449950-20160614085746/@comment-7418318-20160614121729

It should be... which makes her quite the hazard to her guild mates.

But it could also turn her into pretty much a weapon of mass destruction against the enemy.

Imagine Mavis just walking into the middle of Zeref's main force and then think really hard about how much she loves her guild. In theory that could unleash a massive death wave, wiping out a lot of Zeref's troops.

Of course Mavis would never do something so bloodthirsty... not on purpose anyway, but it's still an interesting thing to think about.