During the final event of the Grand Magic Games, Gray is tasked with beating Rufus, which is the key to Sabertooth's fall. But it seems to be a one-sided battle as Rufus uses his Memory Magic to make new magic, as well as causing Gray to forget his own!
No matter how many rocks 
I destroy, there are more rocks!
!كلما حطّمتُ من صخور، ثمّة المزيد منها