Delthorns Water Shot

You hurl a compact ball of water at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 cold damage. A flames or small fire hit by this spell is extinguished. If you hold the spell as an action and then cast it as a bonus action the power of the spell increases but the range decreases. The range is reduced to 35 feet and the damage is now 2d6.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (5d8). And on the bonus action release this spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (4d6).