The Necromancer uses arcane rituals and cryptic incantations to connect with the necrotic forces that are still present in the New World. He uses this ominous chant as a trigger to awaken the skeletal warriors and bind them to his power. The ephemeral insignia served as a means of linking the morbid energies and strengthening the ethereal connections between the resurrected carcasses and their diabolical puppet master, Chaos.