Seastorm

Seastorm is the legendary hammer of the god, Nordus. The hammer is the only one in the universe, it grants its wielder the power of hydrokinesis. Seastorm is unique, no one else can lift it except for Nordus himself, and it possesses a sentience of some sort, and is able to judge who is worthy when using the weapon. It's able to create constructs of water, summon tidal waves, and can generate water by transmuting the air molecules around it into water.