i know i want smiting prayers for sure but beyond there i have no idea what i want to do.
the reason i chose necro as my primary is becuase i like the idea of gaining energy from killing and of course they look so cool

if i go blood magic/smiting prayers/healing prayers then i would be able to contantly be draining life from monsters to keep my health up while healing other party members plus the occasional smite while partying and while soloing i could drain monsters life to keep me alive while using smiting prayers then if need be i could always use a healing prayer on myself.
or i could go with death magic/smiting prayers/healing prayers which would allow me to deal more damage and have the ability to heal but i dont know how well that would work in a party if i want to focus on mainly healing.
thanks for your help.