Greyhawk 636 CY: The Rise of Asmodeus
Asmodeus is the author of the pact primeval. This is the agreement with the gods of the multiverse that allows the demons and devils to torment the souls of the sinful and extract energy from them. He is, by far, the most powerful infernal being in existence. His origins are shrouded in mystery but what is known is that he fell from the upper planes in primordial times sometime after or during the battle with the Mad God. He is the ruler of Baator, the nine hells.
Asmodeus is the strongest, most cunning, and most handsome of all devils. He is typically described as appearing as a giant human, over 13 feet tall, with dark skin and hair, red eyes, handsome features, and small horns on his forehead. He dresses in regal finery of unimaginable expense (the cost is the same a country used on food in a year). Beneath his clothing, Asmodeus’ body is covered in bloody wounds which he sustained when he fell from the Upper Planes. His wounds ooze blood daily, and the drops of his blood which touch the ground grow into powerful devils, normally Pit Fiends that are mad with rage and the desire to kill. Blood from these Pit Fiends that hits the ground grows into lesser devils.
Asmodeus is never seen without his Ruby Rod (also referred to as The Rod of the Asmodeus in The Book of Vile Darkness and in Fiendish Codex II), a glowing rod of pure ruby that serves as a badge of office as well as having several powerful offensive and defensive powers. The Rod allows Asmodeus to attack with elemental forces, force his enemies to cower in fear, or cover himself with a field which heals and protects him. It is also a powerful melee weapon that causes great harm to those struck by it or who touch it against Asmodeus’s will. The Ruby Rod is a fragment of the shard of pure evil that created the Abyss.
Asmodeus is the father of the half-dragon, Lianna Von Slythe.
Enraged that his plans were completely derailed when the party destroyed the Codex of Infinite Planes, Asmodeus revealed that he could take Balthasar von Slythe’s body as a vessel as well. After a destructive fight, Asmodeus was banished when Idrys Tavedran fired the Crook of Rao from his bow, landing a direct hit.