It was Aaraam'soturi. Well, the barrier around Aaraam'soturi to be exact. My attack was easily able to carve a part of that place, but it got blocked, and the energy split, covering part of the invisible surface.
Since it was pretending to be something else. The night sky, to be precise.
On the bright side, I managed to hit several ghosts, just cutting through like a hot knife through butter. They turned to smoke, and the crystals left by them fell to the ground. I didn't have enough time to grab them, because I was still surrounded by at least a hundred enemies.
Then I realized I still didn't use the 'Void domain', which I immediately did, while shadow walking away. The essence started spilling into that world, ruffled by the invisible winds, just as the raging walls of thick darkness blocked the horizon around the area.
