Pummeling Whirlpool

Frequency once per day

You draw water from the environs, swirling it into a rough torrent around you to punish your foes. Each creature in a (or if you're in a body of water) takes |options:area-damage] damage with a save against the higher of your class DC or spell DC. A creature that fails its save is knocked . At 17th level, the damage increases to 11d6.