At the end of this chapter Natsu is able to break the giant sword of the leader of the executors.
I was sure that this would happened, there is even the possibility that Natsu will melt his sword and will eat the incandescent fragments of it, in a similar way just like he did with Tauro’s ax at the beginning of the manga.
If the leader of the executors will have only that power he will be surely defeated, and not even with much effort (I hoped that at least Natsu would have fight seriously).
But to tell you the truth I would really like if that armour will be like the armour that Bui in Yu Yu Hasakusho had, an armour which does not serve to protect, but on the contrary it is used to suppress the strength of the user.
Anyways the next chapter title (I took that of mangastream and even mangareader) is “The place/country we are in”.
This could refers to the tournament (very unlikely), infact this could refers to the place that the Fairy Tail wizard (but even their opponents) are located
http://www.mangareader.net/fairy-tai...ry-tail/305/11, as “B4”, “F8”, “S5”.
But in the truth there is the possibility that it could refers to Uosuke power.
Infact I believe that he can manipulate the ground, the place of the various battlefield.
In this case he chosed to change the battlefield in a territory with lava.
I am not sure if he can transform the battlefield only in that territory (surely that will be the territory that he uses the most, and it’s for that reason that he is not leaving the bones of his enemies, because the bones are melted in the lava), or if he can use other battlefield, for example he could transform the battlefield in mountain, forest, lakes, seas, deserts.
For now I believe he can transform the battlefifeld in different places, not only that of Lava, infact I believe that his magic is called “terrainal effect”, but he can use various form of it, one is that to transform the ground in lava, and another and different is that of the gravity
http://mangastream.com/read/fairy_tail/51675459/15 (in a similar way his power is similar to the transformation of Mirajane, Elfman and Lisanna, infact their magic are called respectively Satan Soul, Demon Sould and Animal Soul, but they have different type of transformation, so just like them is magic is called “terrainal effect”, but he can transform the ground/place in differential thing, just like Mira and the others have different transformation).
If this will be the case I believe that in the next chapter while Yukino will summon Pisces and Libra (Libra will annul the gravity effect) Lucy will summon Gemini (perhaps even Loki will attack) and use Uranometria, but If I am right and Uosuke could change the battlefield he will create a mountain or a forest as a shield (if this happened there is the possibility that Lucy will collapse, since she used all her magic power).
Anyways I believe that even if not already in the next chapter, Uosuke at the end will be defeated, and then the group will reach the other battlefield.