- Builder unit, the Thousand Sons equivalent of a Chaos Warpsmith.
- A member of the Cabal of the Order of Ruin, one of the original three Red Orders of the 15th Legion, he acts as the representative of the Thousand Sons in the Dark Mechanicum.
- Much like the Thrall Wizards, he is able to initiate the materialization of all structures; takes up no pop cap but but only one is allowed per deployment.
- However, compared to them, a Numerologist repairs Vehicles and Structures faster and more effeciently.
- A sorcerer of his own, he is able to use his psychic powers to detect stealthed foes in a short radius and heal or boost the power of a selected engine of destruction (Vehicle or Aircraft) for a short amount of time.
- Armed with a DarkMech Power Axe and a relic Volkite Serpenta Pistol, which is effective against most enemies, in particular larger Vehicles and Structures.