A loud explosion spread across the Grand Arena, making everyone's eyes widen in surprise.
Earlier, William was just not randomly fighting against the Black-robed man. He was busy planting Rune Mines, using the power of the Runemaster skill in preparation for this moment.
William knew that even though the players sided with him, their opponents were simply too strong, and organized. The agents' teamwork were superb, so an impromptu alliance wouldn't be much of a threat for them.
Since that was the case, William just planted as many mines as he could. He intended to make them explode simultaneously, to create a deadly attack that would instantly obliterate anyone who stepped upon them.
A dust cloud had settled inside the arena, and none were able to see the outcome of the battle. Two minutes later, the dust cloud receded showing a fifty-meter wide crater. At the edge of the crater, two figures stood.