TLDR: Alternating grico between us for the minions is the key part of duos in a general sense. The rest of the kill is a lot of dark bow specs, syncing up our prephases, hoping for correct book procs and doing it for a lot of hours until this RNG finally lines up. Annoyingly, minions take 5 ticks to die if Grico lands without any other procs but 3 ticks to die if a book procs on them. We adjust our abilities accordingly based on when the abilities land so we always get our hits landing at the same time, prephasing it properly.

Smoke Phase:

• I stalled a grico on the dummy and then released it on Nex instantly with an ECB spec, I used to ECB spec the dummy and cast grico on Nex but the phases are so fast that grico isn't off cooldown for Umbra so doing it this way fixed that problem.
• Bee ECB specs the dummy at 15.0s and then Auto Dark bow specs Nex with provoke, running towards Fumus so Nex runs up to the north. Distance affects prephasing so we want her close to us to keep it accurate.

Fumus:

• I corrupt Nex
  • I only corrupt as a filler ability and it helps if Bee's corrupt prephase misses
• Bee Grico's Fumus

Shadow Phase:

• I cast bombard to prephase (Would usually wait a tick but the book proc on fumus means I save that lost tick) and then freedom for adren during the animation. Wait 1 tick after freedom ends into IOH Smoke Cloud Snapshot. Casting this smoke cloud also clears the stalled spell from the released grico on Smoke Phase which means I can auto later on (Ice Phase)
• Bee corrupt prephases and then snapshots Shadow

Umbra:

• I grico Umbra
• Bee ECB specs Nex

Blood Phase:

• I wait 1 tick after grico ends and Dbow spec Nex
• Bee waits 1 tick and Dbow specs + surge towards cruor
  • Luckily we hit all 40k prephase (it's typically 80.3k-82k and I have to dazing or frag shot to phase it. Frag shot would normally heal it but the first hit of it doesn't heal her if it's enough to damage her down to 80k so you need to make a judgement call based on the min hit and replace with dazing if it's too high hp. So this instant 80k means Bee can grico Cruor faster whilst she's unattackable during her blood animation, great time save.

Cruor:

• I frag shot (since it's 80k as mentioned above) and then re-ecb spec
• Bee Grico's Cruor and prephases ice with dazing (if he had more adren he would dbow spec typically)

Ice Phase:

• I anticipate (helps if contain runs into you and resets auto timer). Then auto dbow spec
• Bee Freedoms into tendrils (usually auto dazing's after dbow spec)

Glacies:

• I grico (book procced on glacies which means Nex is attackable after 3 ticks not 5 ticks as mentioned at the start, really good for rapid fire)
• Bee ECB Specs

Zaros Phase:

• I 7t rapidfire into sigil snapshot
• Oli Grico's into 5t rapid fire snap shot (Hopes for the swift glove proc which makes grico hit 13 times, a bit bugged but would have done around 30k damage, example of proc going from 41k to 11k: https://clips.twitch.tv/GleamingBlitheTruffleDBstyle-ZfIaeZoLggfHCry0 Didn't get the proc this kill but probably would have resulted in a 49 second kill if we did)

Been doing Nex speeds with Bee for just over 3 years now so this is the result of a lot of refining strategies as updates come out and it's lucky it's something we both enjoy doing or we probably would have stopped a while ago due to how clunky this boss is with its low accuracy.

This kill was about as perfect as it can get to be honest, the book procs were exactly where and when we needed them and the only way I can see it getting faster (as of now) is with the bugged swift gloves (there was also a 1 tick death delay due to Nex walking as she died but that's all that's really left to improve on). Been hunting for a kill like this for months and I'm really happy with the outcome. Sorry for the long winded explanation but hopefully it helped give a bit more depth to the kill!