You have been imbued with the aspect of water. You know the Shape Water cantrip, can breathe underwater, and you have a swimming speed equal to your walking speed.
You have a number of power points equal to twice your level. You can expend no more power points at once than your level. You regain all power points when you complete a long rest.
As an action or bonus action, you can spend any number of power points and choose a point you can see. You are able to control inanimate water (including ice and steam) around that point in a radius equal to ten times the number of power points spent (i.e. you can spend 1 power point to affect a 10-foot radius, 2 points to affect a 20-foot radius, etc.) in feet. You affect it in one or more of the following ways:
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You cause the water in the area to move as you wish. If it moves beyond the area, it resumes its movement based on the normal conditions. You can make the movement continuous (such as creating a ring of rapidly flowing water around yourself), in which case it lasts until the start of your next turn.
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You change the state of the water in the area. Any vapor created this way is not hot enough to deal damage, but heavily obscures any area it fills.
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You reshape ice in the area in any manner you choose.
When water you control this way would cause damage to a creature, that creature can make a Dexterity saving throw against your spell save DC. On a failed save it takes 1d8 damage, and it takes half as much damage on a success. The damage type can be bludgeoning, piercing, slashing, or cold. This damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).
If water you control this way would restrain, surround, blind, or otherwise impede a creature, they can also make a Strength saving throw to avoid that effect and if they fail, they can do so again as an action to end that effect.