You're theorycrafting in the right place, because I spent 30+ hours on the PTR trying to work on various pull/zDPS/tanky builds.

The initial build (which was nerfed into the ground) looked really promising:

Gear:

• In-Geom (pre-nerf) + Solanium
• Zodiac
• RoRG
• EQ 3
• Vigilante belt
• Stomplanche boots (pre-belt change) or Luts
• Dovu amulet
• Skull of Resonance
• Parthan bracers
• ~70% CDR
• Essoteric, Gogok, and Wildebeast gems

Skills:

• GS - Jarring
• Leap - DFA
• EQ - Cave-in
• TS - Grim Harvest
• IP - Mob Rule
• Avalanche - Snow-capped or Rend Mutilate.

Passives:

• Nerves
• Relentless
• Superstition
• Rampage or Inspiring Presence

Leapquake was proccing Zodiac, so my CDs for leap and groud stomp were coming back in about 2s so I could rotate for perma-stun on the RG. Tanked my way through a grouped GR50+ without taking much damage.

Zodiac nerfed 3 times in a row. In-Geom turned into insta-salvage. Back to the drawing board.

Your build is similar to one of many I attempted after that, it has some downfalls:

• Wrath 5 piece and only 2 pieces of IK leaves you with massive downtime on WotB, gutting both damage and defense. Zodiac no longer works to keep WotB up with a full WotW build, you have to mix in IK3.
• Iceblink is a steamy PoS according to the general population. We will see as time goes on.
• Dread Iron is actually unnecessary, the stun from GS is better and lasts longer than the freeze from avalanche.
• Earthen Might won't keep up with how much Fury you will need.
• Rend, while nice, is not a sustainable part of these builds (I tried).
• WW Hurricane only pulls 2x per second. Not anywhere near enough unfortunately.

Some things to try:

• Ancient Spear - Harpoon: best thing ever for pulling. Sucks down Fury like nobody's business, still working on ways to sustain (atm thinking Lightning WW+BKO for fury, mobility and resets w/ zodiac when I don't need to pull things).
• Reduce the number of CDs you regularly use to 2 (aside from WotB+CotA with the 4-piece IK b/c they reset so fast it won't interfere with zodiac's reset too much). Ground Stomp +
• Threatening Shout w/ SoR are the most successful CDs so far. You may find some other great combo.
• Try IK3+WotW3, SoR, RoRG, Zodiac, Dovu
• Max out CDR in every single slot
• Max Fury on Paragon, weaps, and belt - gives you a bigger pool when you need to chain spam scorpion's harp... I mean ancient spear.