Start off with salve, 3 tangos, 2 mantles (lol i said slippers before), 2 GGBranches. Get Ptreads, Mek, Ult orb, void stone, then mystic staff for the sheep stick. Don't get ult stick, not worth it. For late game you can get deso and/or shivas. The last two items are luxury items and usually won't reach. If you do reach that point, get shivas first.
For skill build I like to max pulse and sadist, getting ult at level 6. This helps to ensure you can farm well and spam pulse. I personally believe that aura is highly situational and it can be good, but sadist is just better for farming(opinion). After maxing pulse and sadist, max out aura then stats.
Originally Posted by UrkeNS
Aduh Awas wrote a very good guide for Necro. Look for it. It's not outdated. Soul ring is a must.
I see no point in getting soul ring when you have a move that gives you mana back. You simply need to last hit and spam your pulse. Soul ring is a waste on Necro, in my opinion.