Flood

"You can't be serious… not that," Ryan said.

"Poseidon is even more serious than I imagined…" Femradiel said. "More than two-thirds of this planet's surface is covered in water, but it looks like he isn't satisfied with that."

 It was kind of hard to believe that the planet would have to deal with a global-size scale flood, it was even weirder that it was raining, but Poseidon apparently could do that without relying on rain. Regardless, Gustavo and his friends did the right thing… even Poseidon probably won't have the power to submerge all the continents. Still, he certainly will decrease their size, and the cities near the coasts will be the first ones to disappear.

"Can you imagine how many monsters he will kill just like that?" Ryan asked. "All the dungeons near the coasts will become trees that day will give him coins a day in and day out."