Devouring Whale

On beginning of cast (1st action/Bonus action):

A cloud forms overhead and rain begins to fall from the sky.

On cast (2nd action):

The clouds open up, and water pours from the tear in the sky. Not in droplets; a mass of water in the form of a giant whale crashes down on the battlefield. 

Each creature in a 25-foot sphere must make a Dexterity saving throw. A creature takes 1d12+5 bludgeoning damage on a failed save, or half as much damage on a successful one.

Makes all entities in range wet. Knocks entities back 10 feet from center of impact.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 2d12 for each slot level above 1st, and the spell takes 1 extra action to cast.