The railgun's might

Zick had eaten dozens of dragon hearts, his fully recovered heart, unlike the past one similar to dried wood, at this instant beat loudly. 

High above the sky, Zick in his dragon form looked down on what remained of the desert region. 

The ocean water could be seen already covering most of the land, with only a few places with high ground visible on the water's surface. 

The place was affected by both Zick and the sand dragon's attack. It was not possible for any living being to inhabit the place. 

Looking forward, Zick could see the sand dragon whose body had grown by a few meters. Its scales had grown by a few centimeters, appearing stronger and glossier. There was wariness and fury in its eyes.

Zick's dragon eyes flickered with a cold light: 'So this is its soul ability? To increase the defense of its body. Seeing it's a higher form of energy characteristic, most of its abilities are more inclined toward self-strengthening or bluff.'