After some wrestling with the Sea God Scepter, Klein gained a preliminary understanding of its powers.
It could create tsunamis, create hurricanes, produce torrential rain, and bring forth lightning. It could allow a person to fly in the sky and roam the seabed with almost no restrictions.
It was nearly indestructible and could be used to smash an enemy's head in. It allowed the wielder to never get lost without the existence of any other powerful factors. It would provide an unimaginable level of balance, drive many sea creatures to do one's bidding, respond to prayers from believers, and also allow the wielder to obtain the same kind of strength as a sea monster. It was equivalent to making the wielder the ruler of an entire expanse of the sea.
To Klein, this was already considered at the level of a deity. Even on Earth, he could resist an aircraft carrier formation!