Sea Hag

The Sea Hag is a hag-like demon who can control water. She can trap her victims in columns of water, and has control over environment, allowing her to cause rainstorms, hurricanes, and even tidal waves. She is a trickster, for she usually tricks mermaids who have grown tired of the sea and their immortality by offering them legs, so they can enter the mortal world; but at a price. Should the mermaid fail to find true love with a mortal, the Sea Hag takes her immortality. The Sea Hag was vanquished by Phoebe using an Auger Shell.