HexxDash is a monstrosity created by Alerkina4the6th (THE FAKE ONE) by using the DNA of Rainbow Dash and Hexxus from the Fergully movie. It craves pollution and being 20% cooler. HexxDash was made to kill Vent Light due to its creator's animosity towards him. HexxDash also hates Vent Light as much as its creator. Its abilities include creating a black sticky substance that emits a horrid scent which can cause a healthy environment to rot, form a pollution rainbow which is a rainbow that is basically black n' white and causes forests to wither, fly at extreme speed, and the Hexxus Rainboom.
Vent Light killed it even though Hexxdash is Over Powered.