That said, boosting sheet toughness is also a good idea. Hex eases the entrance to a rift, when you have no Sycophants up, makes regularly hitting Soul Harvest a trivial task, and though regularly having a half the mobs on screen CCed just generally ramps up your survivability way more than any single sheet toughness boost ever could. Sure, it's convenient, but early Zuni needs survivability way more than it needs slightly better mob grouping, especially when you're relying on a piercing attack you can often line up efficiently even without them, rather than a radial AoE. Similarly, I'd drop piranhas for Hex while you build up your toughness. Outside of the kind of serious pushing that 90% of people will never bother with, it's way too much hassle. I don't understand why Haunt is always Zuni's go-to spender.

If youre on NA, I'm happy to take you through it as some stage

Lakumba's are a must, dont care what anyone else says, 60% damage reduction is against all creeps not just elites, I do 700b per crit dart, you dont need the extra damage from Aug's Since you're going Zumis, highly recommend Compass rose + Traveler's, its an extra 50% damage reduction. With your refresh on Spirit Walk at 10 sec, the 6-8 creeps that have haunt should be able to instantly refresh your cd incase you need to re-spirit walk to dodge attacks. Steps 2-4 should be doable in 2 seconds with the move speed, otherwise you just need to get closer before you jaunt in.

Soul Harvest refresh (all you need to do is hit 1 creep).

Jaunt to the edge of the creeps, this should force your fets to teleport to tank the wave.

Cast Haunt 3-4 times when you see a creep wave (ignore anywave thats less than 3).

So for now just what ever you can with good %fet +Int.

I'd have to agree with Wimplow81, skeleton king is probably best in slot, but also hardest ancient to get, along with the boots in the LoN build.

4 piece zunnimassi armor build diablo 3