Hollow Arena.This is the name of another facility found within Merlin’s dungeon. Unlike the other places that are built by his kobolds, this structure is created solely by the fact that the dungeon has gone over [Level 10] and that, it’s master has ascended into a proper demon lord. Not a lesser one but, rather, a monster that’s close to the prime of Azazel. This is still far from Merlin’s own prime of course. Though that’s not a problem for the thing being spoken of.[Structure Name: Hollow Arena.][Level: MAXED][Information: A place that contains residues of dark mana that’s spread around it. The arena builds itself on an empty space within the dungeon that has enough space for its creation.][Information: Once inside, the place becomes a territory of its own. Cut from the outside world and, thus, cannot influence the outside world as well. Should there be anything destructive released within the hollow space, it would simply devour all of this, just like any other spell or attack
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