Although the black flames were not able to do any damage to him and weren't even as strong as he always thought, and were even toxin, nevertheless, it simply didn't have much effect on him, however, that didn't mean, if he met a stronger flame he wouldn't be affected, it was just that the black flames were not at the level where they could do any damage to him, only the force of belching them out was powerful enough to push him back for a moment.
However, Bernard didn't get closer to them than he already did, since it was likely if he got close to them, they would use it in surrounding him from all corners which would be anything but good news to him, considering their sheer size and strength, which meant there was only one thing left for him to do at this point. As Bernard looked at the Dracolizard, he thought it was finally time to end the fight.