Best Necro Defense build?

Basically looking for a good pet build d3 necro or GD necro? Both of these doesn’t seem to offer much defense. Hoping there is a build that does NOT require micro managing and allow some really good defense so I don’t die so easy.

For example using test lvl100 with both classes above maxing out a few things (beginning gear), i still easy die to enemies just out of the first town. I’m not even trying to fight or casting anything.