Games Workshop revealed the new Mechanicum Battle Group for Legions Imperialis—Tech-thralls, automata, and more await to dominate your next epic-scale battle!
Mechanicum Battle Group Revealed for Legions Imperialis
The galaxy has always been a place of war, and during the Horus Heresy, even the stoic forge worlds couldn’t stay on the sidelines. Once the Legiones Astartes and Solar Auxilia beckoned, the mechanized masses of the Mechanicum, armed with terrifying automata and arcane technology, threw themselves into the fray. Now, these mechanical marvels have arrived in Legions Imperialis in a massive boxed set, sure to make both hobbyists and strategists alike rub their hands in anticipation. (plus, it looks like the leaks about the box were all true.) Let’s look at the core units of the Mechanicum Battle Group and the sheer mechanical mayhem they bring to the table.
Adsecularis Tech-thralls – The Disposable Horde
Imagine the assembly lines of forge worlds churning out millions of mindless, soulless bodies, stripped of will and individuality—this is the fate of the Tech-thralls. These unfortunate souls serve as cannon fodder for the Mechanicum’s war machine. While they’re not the toughest or deadliest of warriors, they fill the ranks in massive numbers, clogging the battlefield with their shambling forms. You might say their primary job is to absorb enemy fire, which they do in droves. In game terms, their role is pretty clear: cheap, plentiful, and very expendable. Think of them as the ultimate meat shield, minus the meat.
Thallax Cohorts – Lightning in a Jar

Ursarax – The Fist of the Forge
Where the Thallax bring firepower, the Ursarax bring brutal, up-close violence. Created for close-quarters combat, these hulking creatures pummel their enemies with devastating power fists and lightning claws. If you’re looking to crack open Astartes armor like a tin can, Ursarax are the shock troops you’ll want barreling down on your enemies. Of course, they’re not quite as durable as their Thallax cousins, but when they get stuck in, they tend to leave quite the bloody mess.
Myrmidons – Walking Artillery

Legions Imperialis Mechanicum Battle Group: Castellax, Thanatar, and Domitar – The Automata Wrecking Crew

Vorax and Arlatax – The Exotic Engines of Destruction

Vultarax and Triaros – Sky and Ground Domination

Final Thoughts on the Legions Imperialis Mechanicum Battle Group
So there you have it, the Legions Imperialis Mechanicum Battle Group—a finely tuned symphony of destruction, equal parts cold calculation and raw firepower. This new boxed set brings the mechanized fury of the forge worlds right to your tabletop. With units ranging from the cannon-fodder Tech-thralls to the thunderous Thanatars, there’s something for every type of tactician—whether you prefer overwhelming force or surgical precision.
Now the only question left is: do you prefer your battle automata loyal or just a bit… darker (yes, GW did mention Dark Mechanicum)?
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What do you think about the new Legions Imperialis Mechanicum Battle Group?



