[PoE 3.11 Harvest] Arcanist VD Brand day 2 vs T16 Phoenix - more fine-tuning!

Day 2 of tweaking the build for endgame - income has been INCREDIBLY slow this league because I'm enjoying the farm (ironically) but I managed to work in the following upgrades: 1) Unnatural Instinct - 2.5 ex - Adds significant tankiness and DPS, I would call this indispensable and buy one ASAP before it explodes again. 2) Better belt for 20c - Some max and flat ES. Thinking that Stygian belt with 2x great Abyss jewels could work wonders though.. 14% cast speed *150% extra effect for a total of 35% increased cast speed on a belt, with 200 life and ES? Hmmm. 3) ANOTHER thread of hope scaling the explosion even further. With a few more adjustments the idea is to be able to stand next to bosses, soaking their hits, so they eat full damage all the time. (Once they move, efficiency drops to ~65% of maximum potential DPS - more if the balls cap out.) Current stats: 5133 Life, 2218 ES 75% Block / 75% Spell Block w Glancing Blows 1200 Leech/s sDPS caps at 4.36m at max efficiency (ramped up + target standing still). Effective DPS is a matter of practice, confidence in tanking damage (and thus standing still with the target.) Clearspeed is REALLY fun and zoomy in fully juiced maps where balls chain from pack to pack, but ~eh in low investment or open maps. Pack chaining allows you to just use the VD brand instead of having to sustain the desecrate brand. Leave your questions below!