This magic weapon has 3 charges, and it regains 1d3 expended charges daily at dawn. While you Dominate carry it, you can expend 1 charge to cast Beast (save DC 15) from it on a Beast that has a Swim Speed.

This trident is a magic weapon. It has 3 charges. While you carry it, you can use an action and expend 1 charge to cast dominate beast (save DC 15) from it on a beast that has an innate swimming speed. The trident regains 1d3 expended charges daily at dawn.