The Horseman's Helm

The Horseman's Helm is an plate head armor. This is the Headless Horseman's head gear. It has a natural fiery green armor glow. It seems to have a unique model.

Source
This item drops from the Headless Horseman in Scarlet Monastery. It has a Very Low (3% - 14%) Drop Chance.

Macro Fun
A fun Macro that makes use of the "USE" function of the helm. Right-click to equipt (if needed) left-click to activate.

/equip [btn:2] The Horseman's Helm /stopmacro [btn:2] /y Haa ha ha ha ha ha ha ha haaaa! /use The Horseman's Helm
 * 1) showtooltip The Horseman's Helm