The black dragon's growl reverberated through the cave, as Eisen stared deeply at the cut on its face. It was the one that was cursed, but it made that ability its own. That explained why the black dragon wasn't fighting on its own all that much. Rather, it seemed offended and upset when Eisen got through the first part of the trial, meaning that the dragon had to fight him. It really did seem like this dragon was as much of a battle maniac as most black dragons were, so why was this one so apprehensive to actually following through with it? Simple; because it was weak.
It had been cursed. It was worried that someone was actually going to beat it, so it decided to just blast any challenger with cursed energy beforehand. Even if they were able to get through to the end, they would usually be severely weakened. This dragon was a coward, nothing else. And maybe... Eisen could take advantage of that.