If an unrepentant sinner kept another god before the Judeo-Christian God and found themselves in Hell, the unfortunate soul may meet Abaddon. Also known as Apollyon, this demon is described in Revelations 9:11 as the leader of the Four Horsemen of the Apocalypse known as the "angel of the abyss." As if that didn't sound foreboding enough, the demon's name means "Destroyer" or "Destruction" in Greek and Hebrew.
This listing will give you a portal straight to this demon. Once again, this is NOT recommended for the beginner companion.