Beam

What the hell is it doing? Its mouth... it's full of electricity! Yoichi thought frantically, trying to predict his enemy's first attack and come up with a plan to counter it.

Kenji's fire element and Urgerross's spark element didn't suffer any particular damage from each other. Moreover, both demons, though belonging to different levels, shared their draconic nature. 

However, the real difference between Kenji and Urgerross lay not only in level, size, or ferocity: the thing that most distinguished the little dragon from the great white dragon was the fact that it was under the orders of a human being. 

Throughout its life, Urgerross had never been subjected to anyone but Therion. On the other hand, Kenji didn't fight alone and relied on the combat ability of its tamer, using its skills to enhance his body and grant him a better chance of winning.