SSSSSHHHH!
Red continued using his fire to chase Gravis, creating an incredible amount of steam in the process. Gravis moved at a depth of around ten meters against the river's flow. Luckily, he didn't need to swim due to his Elemental Synchronicity. He turned towards Red while still moving along the river. Gravis' eyes narrowed as he concentrated his lightning to shoot at the Riverbed surrounding Red.
Red also narrowed his eyes. He didn't know what Gravis was planning, yet he quickly found out as he felt his speed slowing. "Tch," spat Red underwater. Gravis was using the lightning to excite the flow of water so that more water would flow into his flames. Normal water might not impact their attacks much, but it still used up his flames' power. Since he always used the same amount of Energy, the additional water slowed him down.