Swim Reaper

Appearance
The Swim Reaper is a glow-in-the-dark Ghostface-style mask worn over the face with a black hood worn over the head. The upper part of the mask resembles a skull's eye sockets and nostril cavity, and the lower part resembles four tentacles draped beneath the nose and around the mouth like a large handlebar moustache. The left side of the hood features a large patch in a dark shade of the wearer's ink color.

Etymology
Swim Reaper is a play on swim and Grim Reaper, a folkloric personification of death.