Swirlies

Create a whirlpool a foot in diameter, 2 feet off the ground in front of one creature within sight. Target creature makes a strength saving throw. On a failed saving throw, creature's head is automatically dunked 1 time per round for 1d4 damage. Creature can roll a saving throw 1 time per turn. Spell ends when either the creature succeeds their saving throw or it is dismissed, or the wielder's concentration is broken. Aqueous  and amphibian creatures take half damage.