I actually dont think this build needs Hex Siphon
I only use BB on some fire immune herald packs and theres still no guarantee that it will be my BBs that get the killing blow and not the minions
if Blood Boils dont get kills - Hex Siphon does absolutely nothing
and when I dont use BB (which is most of the time) - Hex Siphon also does nothing..
spending 3 skill points (and needing to periodically recast it) just for that seems a waste to me
even if BB gets a few kills here and there - the life/mana you get is negligible overall
with a ~9 cost teleport and 900++ mana pool, there are no mana issues at all, ever
I think its very viable to not skill it at all
if the Blood Boils applied the -33% damage from H:S then yeah, it'd be worth
but as it is - meh
I've been running this build without H:S so far and its been great
Its a fair point for sure, but I find the hp and mana both pretty useful when you're in those dense fire immune areas and thaf could mean mana burn affix too. BB uses up mana way faster and immunes are far more likely to land some damage on you, and siphon is full synergized with just 3 skill points needed. Its a really small investment to unlock a really huge effect that yes, only applies in some scenarios. But there are enough areas that pack swarms of small fire immune monsters that can demand frequent BB spam that the mana/hp streamlining can pay off.
Notably I think it matters the most against burning dead / scarabs in tals tombs. They fold fast to BB, even the pure phys no fire sunder / base oath setup. But they can spawn with swarms all over the place and are aggressive enough to land a few hits, and you'll always take chip damage from bolts. Siphon does a good job negating that damage and making the BB free to spam
Other areas its less relevant. Mana burn affix maps you can have hiccups where you get drained to 0, wait a half a second, then tele and bb a mob and pop back up without using a pot. Fallen and flayers being fire immune matter, and it also offsets some poison damage taken in those flayer areas. The more low hp dense mobs, the more you will be the source credit for the kill and more kills at a time. But when you're against some chunkier fire immunes that can damage you like frenzytaurs, arachs, lister- then its a mostly irrelevant buff where you probably won't get the killing blow on half the kills, like you say.
Overall its 3 skill points so I figured its worth the QoL here
This post was edited by Goomshill on Jul 2 2026 04:40am