The Vermillion are a faction of antagonists in LEGO Ninjago: Masters of Spinjitzu, being a major threat in The Hands of Time. They are the pure first-generation progeny of the Great Devourer, appearing as masses of snakes that can merge into humanoid forms. With armor forged by Ray and Maya and the leadership of Krux and Acronix, the Vermillion's main agenda is to consume everything in their path, much like their progenitor.
The Vermillion commanders Machia, Raggmunk, and Blunck were selected by Krux as the strongest and most cunning of their species. They are capable of controlling the other Vermillion warriors through a hive mind, until Acronix and Krux fired the Vermillion commanders and used the helmets of Blunck and Raggmunk to control the Vermillion warriors themselves.
With control of the Vermillion, the twins telepathically smashed the rest of the Vermillion warriors into their component snakes, which were absorbed by the Iron Doom. Under the twins' orders, the Vermillion snakes ultimately gave life to the machine. Eventually, it would become lost in time after Wu ripped out the Reversal Time Blade from the Iron Doom's time apparatus, leaving the Time Twins and their Vermillion hordes stuck in the time vortex.
Although the Vermillion look vaguely humanoid at first glance, their true forms are red and/or orange snakes; they can combine their bodies to appear humanoid, aided by their armor and the telepathic command of their superiors. Despite being made entirely of snakes, Vermillion warriors can manifest fangs and eyes seemingly independent of their components.
Vermillion apparently reproduce via large "eggs" with a distinctive metallic grey shell and red spots on either end. When shattered, the eggs release several Vermillion snakes that attack anything not allied with their kind, making them effective weapons.
Vermillion vehicles are red and dark grey, with black and dull orange accents. Many have a single tank-like tread as their primary locomotion, as well as large blades on their sides for intimidation and attack on passerby. The vehicles also have Vermillion snakes permeating their hulls, which act as a power source of sorts to enable their functions.