I’ve always wanted to be a necromancer in the wizard class although, I’m not really smart with builds so I usually look up some guides to get my decision right. So if there are any guides that I can follow that you know of, please feel free to let me know 
Best guide for PvE is go wiz3-link3-necro0-FF2 for PvP - wiz3-psy2-necro2-sage1