Why does Xfals not seem to trigger on certain DoT skills?

Playing fire sorc. Even with 67% lucky hit (which should equate to roughly 33% chance to proc), firebolt as an enchantment procs it like every 1 in 40 ticks, whereas meteors DoT will proc it about roughly 33% of the time. Hydra’s DoT seems to not proc it all.

What gives? Only thing i can think of is maybe the weight of the cast? Firebolt as an enchantment may be broken for procs, but its also free of mana or CD. Hydra just shoots a bunch of individual fireballs that causing a burn DoT, so might also be broken. I have the aspect for Meteor to cause a 6 sec DoT, but that DoT seems to only apply once and meteor is on a CD or costs a bunch of mana

Make sure to make a bug report if you feel this is in error, I couldn’t say one way or the other because I don’t play a sorc, but it’s been working fine on Necro.

I suspect Hydra is coded as a minion, and as such, it is not YOUR DoT stemming from it.

Bug? Perhaps.

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Sure, i dont even care about hydra, so w/e, but FB enchant?

The ring effect description is rather ambiguous that it isn’t clear whether the ring has a chance to proc when we apply DoT effects or when DoT ticks.

I played a Blizzard/Firebolt sorc last season. Since we could get a lot of attack speed with Vampiric Powers, I used Firebolt as one of the main attacks of my build and it proc’d the ring quite often. I could tell because the ring proc has the same element as the DoT that triggers it.

I also played a Stormclaw druid which I tried to use Toxic Claws passive and Rabies to trigger the ring. Even though Claw and Rabies have 50% base lucky hit chance, the ring barely proc’d and I abandoned it.

It’s just a weird ring.

I have tested this as well. Seems like firebolt enchant can be a bit buggy. It doesn’t always register its DOT status properly. So even if burning is applied it’s like the link between that an it being enchant burning vs Hydra skill tree burning got seperated.

You can see in previous patch notes about firebot enchant not contributing to certianing burning stacks so I’m sure there is other spahghetti code that is tangled and broken in this mix.

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Forgot about lucky hit on individual skills. Could be it

Firebolt Enchantment has always been weird. I have no idea why. I wouldn’t put it past Blizzard to have wonky code on it.

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I only have 52% lucky hit and it procs constantly. Might be bugged with it not working for hydras though. I’m using mine with ice shard. one cast and the whole room explodes

Diablo 4 Lucky Hit Guide - Season 3 - Wowhead

Thanks for linking the guide, but regardless how the FB enchant is applied, it should proc from whatever skill applies it. Will try shooting ice shards for experimenting though. I use Fireball a lot, maybe fireball is bugged

It is notoriously buggy for Bleed Barbarian as well, something the Ring should absolutely be made for. I suspect the issue is that it either:

  • Only procs on the initial application of a Damage Over Time Direct Damage Ability
  • Does not proc on certain things like 2H Sword Technique which causes enemies to Bleed.
  • Damage associated with Berserk Ripping
  • Has a hidden internal cooldown
  • The Lucky Hit value is being reduced doubly. Lucky Hit is actually calculated as a Penalty so X’Fals may have a multiplicatively lower proc chance than it should.
  • Damage Over Time may be squirrely for what gets counted in that bucket.
  • The Lucky Hit chance is being averaged out over the duration of the ability application and every tick nor the initial application has the Lucky Hit value listed on the Skill.

For ease of math, let’s say you have a 50% Lucky Hit chance on a Skill. That really means you have a 50% Penalty to any Lucky Hit Chance Effects. If with +Lucky Hit you somehow even had a 100% Lucky Hit chance of Stunning an enemy, you really in essence only have a 50% chance on Skill use to Stun an enemy. You will NEVER have a chance that exceeds the Lucky Hit penalty value on any given Skill.

If you use a DoT that deals damage every second for 5 seconds and has a 50% Lucky Hit on a Skill and again, assuming you have 100% Lucky Hit Chance, I think what is happening is it is averaging the Lucky Hit over those 5 attacks. In this case, 50% divided by 5 attacks or 10% chance every tick.

This would explain the dismal proc chance of X’Fals and it seemingly not working because you are not ever going to have close to the Lucky Hit chance stated above.

Personally, I think there is a combination of this happening and the original application is getting your full Lucky Hit Chance. So, basically, you would have a 50% chance, then 10% chance every tick past that. To top that off, this appears to only work with Skills and a ton of sources that SHOULD proc it absolutely are not. It is treating it as either a proc of a proc, or it is categorized wrongly.

This is super frustrating because it is impossibly hard to test just how broken it is and what is going on with the math. It most certainly is NOT working as WE hope it to and I cannot imagine as intended. It is a shame because I really really want a Gushing Wounds Bleed Barbarian with X’Fals or Elemental Barb with Andariels and Hellhammer.

Didnt know about that ty.

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Hydra doesnt proc anything without significant investment at 2.5% lucky hit base.

Even with 100%+ lucky hit chance bonus hydra still won’t proc anything at an acceptable rate.

Check this video for more explanation: https://www.youtube.com/watch?v=PbhSse_rroA
And then another for testing sorc and Xfals : https://www.youtube.com/watch?v=rhCMXNEGkt0

Also Firebolt ench does proc Xfals but its lucky hit coefficient is ± 2.7 % per tick it ticks 2 times a second. So there is that.

I think I found the root cause of this. Summarized in this short video:
https://i.imgur.com/9IAjCgF.mp4

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I dont get how this ring works either. Does each burn source count? If I have meteor hit an enemy it already has burn overtime. What happens if I use firebolt enchant too? Does this now do 2 sources of burn overtime? What about multiple meteors? What about Firewall and Firewalls spawned from firewall enchant? All stack? None stack. Who the hell knows.

I have a massive stacking lucky hit build with meteor and I cant figure it out or what to do with enchants. I have to run meteor enchant as its theme req.

Meteor and Firewall - Works well in large groups and lucky hit theme
Meteor and Iceblades - Just overall probably the best with the CD reduction and 3 points in damage per summon in skills

The lucky hit chance for a DoT is some prorated value that is based on the lucky hit chance of the skill that applied it. That’s why X’Fal’s sucks wind with Hydra (which has a hilariously bad base LHC) and is pretty great with Meteor (which has the highest base LHC of any sorcerer skill other than Teleport).

I believe the Firebolt enchant is a special case where the LHC for the DoT is calculated based on the skill that applied it, rather than on Firebolt’s own LHC, so your results with it will literally vary depending on your primary damage dealing skill.

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Informative take!

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