Animate water

targeting a body  of water at least 4 cu. ft. yoiu form it into an amorphous watery creature that you can direct to move and fight as a water elemental of challange rating 1/2 this watery form is a construct rather than an elemental and in addition to normal water elemental traits it gians immunityh to psychic damage. if you lose concentration your watery consturct collapse. if there is not enough water in range, the spell fails. 

at 2nd level the challenge increases to 1

3rtd level increase to challange 2

4th level increases to challenge 4

there is no increase for higher levels.