“They made me design "Iron Doom", a transport to carry the Vermillion throughout time. With all those troops, they would be unstoppable.”
Iron Doom
Element Time
First Appearance Out of the Fire and Into the Boiling Sea
70626 Dawn of Iron Doom
Status Lost in Time

The Iron Doom is a large mech created by the Time Twins, Krux and Acronix, Cyrus Borg, and the Vermillion warriors. The Iron Doom mech is serpentine in shape with two arms and large swords. When all four Time Blades are plugged into the Time Apparatus, it has the ability to time travel. Description

This giant snake-shaped transport is Krux and Acronix’s ultimate weapon, initially coined the Vermillion Transport Armor (VTA). Reluctantly designed at sword-point by Ray and constructed under duress by the builders of NINJAGO City, the Iron Doom is built from all the metal stolen during Operation Heavy Metal. In the heart of the Iron Doom is an apparatus created by Cyrus Borg that harnesses the power of all four Time Blades to time travel.

When enough Vermillion snakes slither inside, the Iron Doom becomes an enormous, semi-sentient armored monster that is part machine/part snake and is several stories tall. The Iron Doom’s slithering power makes it extremely mobile and with its multiple arms and blades, it can take on numerous foes at once, dispatching them with ruthless ferocity. It is controlled by Krux and Acronix, who ride atop it and use the helmets they took from Blunck and Raggmunk to control it with their minds. Because the snakes that once formed Blunck, Raggmunk and Machia are among those that slithered into the Iron Doom, it speaks in a synthesized combination of all three’s voices. When the Twins traveled into the future, the Iron Doom has not been seen since.[1]


Pre-Season 7

Whilst forcing Ray and Maya to create armor for the Vermillion, Krux also ordered them to design a mech that allowed them to travel through time. Ray designed the mech to appear like a snake, to Krux's liking, but due to his lack of knowledge, he was unable to finish the actual component the allowed for time travel.

Still in progress

Powers and abilities

Due to its massive physical size, the Iron Doom is capable of overpowering most opponents. However, most of the Iron Doom's physical strength seems comes from the Vermillion snakes that make up the mech. Using the helmets worn by Raggmunk and Blunck, Krux and Acronix were able to telepathically control the Vermillion that made up the mech and thus able to control the Iron Doom.

The Time Apparatus on the mech's chest allows the Iron Doom to channel the power of the Time Blades, using their powers against opponents as color-coded energy beams. When all four blades are connected to the Time Apparatus, the Iron Doom is able to travel back or forward in time to whatever extent its pilots desire.

For conventional combat, the Iron Doom is armed with two massive swords that it normally carries on its back. It also has a cannon in its head that can fire a barrage of projectiles seemingly made from brittle, red-hot metal.


  • The head of Iron Doom appears to be based on the physical appearance of the Great Devourer.
  • After absorbing the Vermillion snakes, the Iron Doom speaks in a combination of Raggmunk, Blunck, and Machia's voices.
  • The Iron Doom was created a mech, though after the events of Lost in Time it became a sentient being.




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