User blog comment:FairyRaven/Fairy Tail Chapter 368: The Third Seal, Review and Commentary/@comment-1359322-20140125012225/@comment-1359322-20140125090627

It's a homage of Piccolo and Goku's fight against Raditz.

The part where Zero shot his attack (not sure whether or not it is Dark Capriccio) is like the move when Piccolo pierce Raditz body with his attack.