The dirty secret of Amareth is that the old one known as Usezel, formerly the patron of evil, still exists and can still grant spells. In fact, the victory of Samad over all the remaining old ones actually increased his power by allowing him to take over any domain that Samad did not possess. Usezel is Chaotic Evil but can be worshiped by any of evil or neutral alignment.
His domains are -
Chaos, Death, Destruction, Evil, Fire, Knowledge, Trickery, War
Spell Compendium
Darkness, Domination, Envy, Gluttony, Greed, Hatred, Hunger, Illusion, Inquisition, Lust, Madness, Mentalism, Pact, Pestilence, Retribution, Scalykind, Slime, Sloth, Spider, Storm, Suffering, Summoner, Tyranny, Undeath, Windstorm, Wrath, Abyss-1, Abyss-2, Baator-1, Baator-2, Hades-1, Hades-2, Limbo-1, Limbo-2
Sandstorm
Thirst
Stormwrack
Blackwater, Storm*
Heroes of Horror
Spite
Lords of Madness
Corruption, Force*, Hatred*, Madness*, Mind*, Vile Darkness
Book of Vile Darknes
Bestial, Corruption*, Darkness*, Demonic, Diabolic, Greed*, Pain