http://www.mmo-champion.com/threads/...ock-Weak-Auras
Has what you're looking for (in respect to showing when HoG has 5s left til full recharge).
As for the other one:
Code:
dKZxcaWsrLAxikVwuHzkfmxrz2cDtPKUnc7KQAVKDdvhgYprv9xv0VvQPbfdvujFtLmCfCqbDEPqhtHoNkyHOslfvSyPILRQhQs9uWYOsEokNwrtvjtgjtxYfLkDvrfDzkxxKnIQmmO0MrQTJOQVtf(QuIptvMhIkJukYZOsnAez8srDsQOBjQY1KQUNk04ev12Ks9ybwJAjykWP)QlhEH3DZCEZ3hYydwmEspF7SCmJtpsfDeryDEdvKeWemsggYUi7GacbucO0sqWoUFTK)O41Un2ExxhW07gZv7lxxIoVE3Y3L41FDWv(T7XG1nwmhgXMVOZRVxLG38MB8vJdMGYAUsVjOSMR0BcCIx2tJcSSqkQnolRfdLJW0Jyz5A7W(W0JyTAutuwy6rSSW0J6DlO(PNN9Aj4ncbUfqzDs00RghmbnfYPvE5Sbbj8zjOqVNvcWregtl5pkaiHO2oOJictLGeZU3j8sCfeSt4LGrbVrWFWEuTFbK7OGGDcV4pypQ2VGJhfKyghJqCvjysjOjeoLa8eX6NEE2ZK)OG4grPLGeZodIigtCf87OPLaIuSMAPsLGeZozdwG4kGnybAjGnX9IM8DPsqIzNbBIoOsCfeermMwcytCVOjOLqonW)o3QuPsaslbaje12bDerycC6V6YHx4D3mN389Hm2GfJN0Z3olhZ40JurhrewN3qfjvciV8hXGfRkja
Should do the trick for you, as far as I understand anyway. Will appear when you have 1 stack of Shadowflame w/ 3s or less remaining on your target.