Summary
Skitarii target-marking incendiary weapons, degraded descendants of the lost Phosphex of ancient Mars.
Lore
Phosphor Weapons are an ancient and lethal armament class fielded by the Adeptus Mechanicus. Their burning, incendiary spheres cling to targets, sizzling as they melt flesh and burrow through armour and exoskeleton alike. Even should a target survive the initial trauma, the phosphorescent glow these spheres exude marks the victim with luminagenic radiance — guiding the volleys of allied Skitarii to strike the same point amid battlefield murk.
Descent from Phosphex
Phosphor is the diminished heir of Phosphex, the crawling white-green flame of ancient Mars that could not be extinguished short of vacuum. In 009.M40 the rogue Tech-priest Veriliad, having led his Skitarii to the slaughter at the Cremation of Alcadia Secundus, destroyed the lone surviving STC database for Phosphex production — extinguishing the substance forever. What survives in the 41st Millennium under the name phosphor is a sanctioned replacement for that lost knowledge: brighter, marker-purposed, no longer the world-killer it once was. The stocks are limited and irreplaceable; see Standard Template Construct (STC) and STC Fragment for the broader doctrine of archeotech loss.
Variants
- Phosphor Pistol / Phosphor Serpenta — sidearms of Tech-Priest cadres.
- Phosphor Blaster — rapid-firing infantry-scale weapon. Mounted on Kastelan Robots, on Kataphron Battle Servitors Destroyers, and packed by Hastarii Fusiliers, where it “burns through cover”.
- Heavy Phosphor Blaster — vehicle-scale pattern mounted in twinned configuration upon the Onager Dunecrawler.
Doctrine of Use
Phosphor is a target-designation doctrine masquerading as a kill-weapon. Its battlefield function within Skitarii cohorts is to paint priority targets in luminagenic glow so that subsequent fire — radium, galvanic, plasma — converges with augur-corrected certainty. Among the Skitarii this is treated as a sacred duty: the marker who lights the foe assists the cohort even should his shot fail to kill.