This Thousand Sons Legion Osiron Pattern Contemptor Dreadnought was in the display cabinets at Warhammer World.
For many decades, the arts by which the powers of a psyker could be maintained medically into the half-life of Dreadnought sarcophagus internment eluded the Thousand Sons, just as it had many others of the Legiones Astartes who attempted the task. It was not until the mind of Magnus itself was focused on the issue, which he saw as part of the wider Librarius Project to establish firmly the place of the psyker within the Legiones Astartes, that a solution, albeit a difficult one, was created.
The use of a crowning psychometric barrier lattice for the living brain of the mortally wounded psyker was his answer, a device he named the ‘Osiron’. Difficult to construct and using principles few even among the Imperium’s foremost psi-arcanists understood, the Thousand Sons immediately began fitting it to the highly adaptable Contemptor Dreadnought chassis in their possession with startlingly powerful results.