User blog comment:Miskos3/Fairy Tail Chapter 483: Seven Stars, Review/@comment-24784846-20160425202736/@comment-2214433-20160425203422

Just to be clear, a one shot is a victory that happens in one attack.

None of the Historias were shown to be even touched by their opponents, ignoring that random attack that Gray used to scratch Ur's cheek a chapter ago. Much damage such wow.

In other words, every single Historia that wasn't Erza's fell in one single attack of the protagonists.

How were they not one shots?