A powerful magic Trident
Wave is a magic Trident that is rumored to have the powers of a minor artifact.
Wave was stolen from a wealthy collector in the Free City Of Greyhawk and spirited off to White Plume Mountain at the behest of the mad wizard Keraptis. The weapon was used as a lure to adventurers willing to test their mettle against the insidious traps and dangerous guardians Keraptis used to guard them. This was apparently done for little reason other than to amuse the ancient wizard.