User blog comment:SayuriDarling/Full first chapter of The Mark of Athena/@comment-4566556-20120614082311/@comment-4566556-20120616021759

@Hmeig But Percy defeated the anti-Poseidon with the help of a minor god. None of his water powers were actually effective against Polybotes but still he managed to beat him.

I'm sure Jason could beat Polybotes but picturing him as defeating Porphyrion seems a bit awkward.