When Rain landed on the floor, he used Impulse again and again… he had already crossed half of the distance when the first sea Dragon noticed that something was happening… when he reached the middle of the base, the sea dragons only found a path of air that he left behind and the movements of the water.
The sea dragons only realized that something insane was happening when their entire base began to tremble and vibrate… it was insane to think of that, but they actually had been invaded, something unheard of in their vast history.
When the sea dragons found Rain, he was punching and cracking the ground where their treasures were supposed to be… all the dragons panicked when they saw that and immediately began to charge at Rain.