[Darkatar]

Nec/Sham is super strong for sure, the biggest thing you're going to "Lose" next to a monk partner, is that a monk is by far superior when it comes to splitting and tanking mobs.

You're going to gain a significant amount of DPS if the necro is charming, (malosini helps, bonus!) otherwise, it will still probably be par for the course with a sham tank/rogue pet.

Something the necro brings that the monk lacks however, is necro heals. Necro healing pre-torpor is huge. and it can stack with torpor too. Having a snare available for fleeing mobs can be super important in some locations as well.

As a shaman, you can also regen the necro, which just pumps up their already lightning fast mana regen, since they'll need to lifetap less.

The only thing you wont be able to do/have a much harder time with as necro/sham that you can with a monk/sham, is tackling unslowable/magic immune mobs. Which is a very rare thing to encounter outside of super unique mobs (stone spider, solb) or raidlike mobs, which is a super minor impact, if any.