My opinion, Nekro has to be fixed by either way as follows:
- defensive pet (30 perc damage reduction for 10sec, removes all slowdown, grants stun n panic immunity, removes curse or any stat n armor reduction for 10 seconds while in the shield. Arcane ability cool down 15seconds. While in shield allies gets 15 per armor boost.

OR,

- Offensive pet ( introduce the original stat and aa before it got ARCANE NERF)