What is your most WTH moment in Fairy Tail?

It could be when u realized Natsu's father was a dragon, or when u got to know laxus was a Dragon slayer, or when makarov got defeated in the Phantom Lord Arc, or when you realized laxus can use fairy law, or even more recent after the arch enemy slice and the splash of blood, or the realization that Future Lucy might not be who she is, or Gajeel obtaining ISD, or even Gildartz getting the word I LOSE out of natsu. The WTH moment can be something momentary, like the instant you saw mystogan's face before he said he wasn't who they were thinking or longer like the realization that zeref was not only still alive but was a young boy. In short it could be anythinf

Anyways for me its the Galuna Island arc, where erza tells natsu they are gonna destroy the moon, the moment when the lance hit and there was the first crack on the moon's view. I was like What The Freaking Hell, until the cracks extended and broke the entire purple sphere, so i guess mine was momentariky