User blog comment:AYET/Let's Discuss Chapter 733/@comment-1595565-20131226053307

The last page grabbed my attention too. It seemed really strange based on what Gatz said. That being said, allow me to look at it forensically for a moment. The first thing I can say about it is that it was not haki. Only one or two of those knocked out showed even one of the symptoms of shock associated with a haki blast, eyes rolled back while foam around the mouth was absent. Second, based on their resting positions, everyone was inflicted with some type of blunt trauma. Also, because of the inconsistencies of their resting positions, they were most likely knocked out in one fell swoop, some possibly having not even seen it coming, rather than each of them being confronted. This means that whoever did this was biding his/her time, waiting for the other elites to take out most of the peanut gallery.

The last important piece of information is what Gatz said. "Someone is getting up." He didn't say someone is still standing, the way he did for Bartolomeo and Elizabello. He said he could see someone getting up. That tells us that whatever move was used to knock out the other fighters involves collateral damage of some kind or another. That being said, I have come up with two conclusions. Either the attack is some kind of air-based shockwave akin to fishman karate or high speed hand to hand combat. From that, I would guess that the user either does not have good endurance and was tired out at the end, or was careless and something happened to them. Regardless of what it was, something tells me we're in for a big revelation in the form of another surprise appearance come next chapter.