Draegloth got Darkness 4/day, faerie fire 1/day, dancing lights 1/day and unholy blight 1/day.<br/><br/>Of course harmful spell-alike abilities are rare to add in but you could just take one warlock level for specific purpose to get spammable spell-alike ability which harms people. Or could allow house ruled feat which adds +2 extra daily uses for exchisting spell-alike ability (unholy blight). Altough it helps only vs good guys.