Soulsteel

Soulsteel is the only magical material that doesn’t naturally appear in Creation. It’s occasionally found in the Underworld’s depths, where many ghosts have fallen into oblivion, or where necrotic energies gather into demesnes. Writings from the First Age — when a handful of Chosen smiths made occasional use of the metal mention primeval veins forming where the blood of dying enemies of the gods seeped into the earth. But most soulsteel is smelted in the soul-forges of the Underworld, alloying strange shadow-ores with souls of the tormented dead.
Though soulsteel resembles dark iron at first glance, further examination reveals its ghastly nature in the faces of horror-stricken ghosts writhing and wailing beneath its surface. Battle and ritual intensify their torment, calling forth terrible moans or screams.
The Abyssal Exalted possess an affinity with this macabre material, whose magic is linked with the negative influences of suffering, emptiness, and endings — blood, silence, cold, darkness, death, disease, weakness, violence, pain, fear, despair, rage, greed, and hatred. In addition, no other substance has such strong ties to the Underworld, commanding, banishing, binding, transforming, and slaying ghosts and other undead. Soulsteel can efficaciously channel sorcerous Essence towards destructive ends, and is an ideal focus for the necromancy of the Abyssal Exalted.