Blood control

Through your control of the water and a target's blood, you force that magical power upon a Target to make them follow your next command. The target must succeed on a Constitution saving throw (DC: 13) or follow the command on its next turn. The spell automatically ends after the command is followed. The spell has no effect if the target has no blood or if it is one or more sizes larger than you. The spell ends immediately if the creature takes damage before it's next turn, as the blood you are controlling will seep out.