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Plague Fire mitigation debuff

ogsplatogsplat Member, Neverwinter Beta Users Posts: 11 Arc User
EDIT: A fix is in the works, no ETA currently. Currently, defense removed is some quantity likely equal or possibly greater than 20%. Does not stack.

OBSERVED ISSUE: Greater Plague Fire (GPF) enchantment is not reducing Defense more than once, regardless of number of stacks of GPF debuff on target. Other traits of GPF enchantment, such as additional weapon damage and damage over time effect, still appear to function properly. I observed this issue on my control wizard, which is level 60 and equipped with an Ancient Court Magister's Orb enchanted with GPF, while attacking target dummies in The Trade of Blades.

This same behavior was not observed using a Burning Shard of Elemental Fire enchanted with a Lesser Plague Fire (LPF) enchantment. Defense of target dummies were reduced by 5% per stack of LPF debuff.

TESTING METHODS: I first observed this issue while fully equipped, feats allocated, and with multiple abilities. To further test and reproduce, I attacked each individual target dummy with Magic Missiles with no gear equipped except the enchanted weapon and without any feats allocated.

I attacked individual target dummies using one complete cycle of Magic Missiles and recorded damage results with one, two, and three stacks of GPF debuff present. I allowed the GPF debuff to fully expire and repeated several trials against each target dummy. I was the only player attacking the given target dummy.

DATA: Below are five trials conducted on Mimic target dummies to demonstrate how the Defense debuff is functioning:

EDIT: Numbers still demonstrate the lack of stacking, just with the wrong nomenclature and methods. Ignore the mitigation numbers beyond the lack of stacking:
[B]Trial 1[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	455	[/th]	[th]	442	[/th]	[th]	2.94%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	442	[/th]	[th]	429	[/th]	[th]	3.03%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	432	[/th]	[th]	419	[/th]	[th]	3.10%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	473	[/th]	[th]	459	[/th]	[th]	3.05%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	420	[/th]	[th]	407	[/th]	[th]	3.19%	[/th]	[/tr][/table]
[B]Trial 2[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	451	[/th]	[th]	438	[/th]	[th]	2.97%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	446	[/th]	[th]	433	[/th]	[th]	3.00%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	443	[/th]	[th]	430	[/th]	[th]	3.02%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	475	[/th]	[th]	461	[/th]	[th]	3.04%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	442	[/th]	[th]	429	[/th]	[th]	3.03%	[/th]	[/tr][/table]
[B]Trial 3[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	452	[/th]	[th]	438	[/th]	[th]	3.20%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	476	[/th]	[th]	462	[/th]	[th]	3.03%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	464	[/th]	[th]	450	[/th]	[th]	3.11%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	456	[/th]	[th]	443	[/th]	[th]	2.93%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	438	[/th]	[th]	426	[/th]	[th]	2.82%	[/th]	[/tr][/table]
[B]Trial 4[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	426	[/th]	[th]	414	[/th]	[th]	2.90%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	413	[/th]	[th]	401	[/th]	[th]	2.99%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	435	[/th]	[th]	423	[/th]	[th]	2.84%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	450	[/th]	[th]	437	[/th]	[th]	2.97%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	477	[/th]	[th]	463	[/th]	[th]	3.02%	[/th]	[/tr][/table]
[B]Trial 5[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	761	[/th]	[th]	739	[/th]	[th]	2.98%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	423	[/th]	[th]	411	[/th]	[th]	2.92%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	718	[/th]	[th]	697	[/th]	[th]	3.01%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	742	[/th]	[th]	721	[/th]	[th]	2.91%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	811	[/th]	[th]	787	[/th]	[th]	3.05%	[/th]	[/tr][/table]

I conducted additional Magic Missiles trials using the same weapon with no gear on the live servers (Beholder). Feats are still allocated on live but do not add additional Mitigation or Defense reduction debuffs (i.e. no Chaos Magic feat in Renegade tree). Here are the results from five trials:
[B]Trial 1[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	715	[/th]	[th]	694	[/th]	[th]	3.03%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	690	[/th]	[th]	651	[/th]	[th]	5.99%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	743	[/th]	[th]	681	[/th]	[th]	9.10%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	705	[/th]	[th]	647	[/th]	[th]	8.96%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	700	[/th]	[th]	643	[/th]	[th]	8.86%	[/th]	[/tr][/table]
[B]Trial 2[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	637	[/th]	[th]	619	[/th]	[th]	2.91%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	706	[/th]	[th]	666	[/th]	[th]	6.01%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	676	[/th]	[th]	620	[/th]	[th]	9.03%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	711	[/th]	[th]	652	[/th]	[th]	9.05%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	666	[/th]	[th]	611	[/th]	[th]	9.00%	[/th]	[/tr][/table]
[B]Trial 3[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	572	[/th]	[th]	556	[/th]	[th]	2.88%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	631	[/th]	[th]	596	[/th]	[th]	5.87%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	602	[/th]	[th]	553	[/th]	[th]	8.86%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	598	[/th]	[th]	549	[/th]	[th]	8.93%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	602	[/th]	[th]	552	[/th]	[th]	9.06%	[/th]	[/tr][/table]
[B]Trial 4[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	553	[/th]	[th]	537	[/th]	[th]	2.98%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	999	[/th]	[th]	943	[/th]	[th]	5.94%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	648	[/th]	[th]	594	[/th]	[th]	9.09%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	625	[/th]	[th]	574	[/th]	[th]	8.89%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	635	[/th]	[th]	583	[/th]	[th]	8.92%	[/th]	[/tr][/table]
[B]Trial 5[/B]													
[table][tr]	[th]	Debuff Stacks	[/th]	[th]	Actual Damage	[/th]	[th]	Damage Without Debuff	[/th]	[th]	% Mitigation Reduced	[/th]	[/tr]
[tr]	[th]	1	[/th]	[th]	560	[/th]	[th]	544	[/th]	[th]	2.94%	[/th]	[/tr]
[tr]	[th]	2	[/th]	[th]	618	[/th]	[th]	583	[/th]	[th]	6.00%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	566	[/th]	[th]	519	[/th]	[th]	9.06%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	658	[/th]	[th]	603	[/th]	[th]	9.12%	[/th]	[/tr]
[tr]	[th]	3	[/th]	[th]	636	[/th]	[th]	583	[/th]	[th]	9.09%	[/th]	[/tr][/table]

NOTE: All data was read straight out of the combat log and calculated in a spreadsheet application. Below is an example of how I calculated resistance reduction:
[Combat (Self)] Your Magic Missile deals 446 (433) Arcane to Target Dummy.

a = Actual damage (the 446 in the combat log line)
b = Damage before resistance buffs/debuffs (the parenthesized 433 in the combat log line)
x = Amount of resistance

x = (b - a) / b
x = (433 - 446) / 433
x = -13 / 433
x = -0.03

I expressed all Defense values as a percentage and used the absolute value for ease of data viewing.

EDIT:
Hey, wanted to touch on some confusion. This enchantment directly reduces Defense, not Mitigation. On critters this is roughly 3% from Greater Plague Fire. The 45% Defense debuff will account for about 9% of their defense. As far as stacking, we have identified why they no longer stack properly and are working on a fix right now, but I don't have an ETA for that. Thanks!

Thanks to @sballarddev for confirmation and update of the issue and clarification of the GPF mechanic. Thanks to everyone else who tested and checked.
Post edited by ogsplat on
«1

Comments

  • stoxbox1stoxbox1 Member, Neverwinter Beta Users Posts: 18 Arc User
    edited August 2013
    Tests on live and on test with greater plague fire on my DC and my CW both show 3% as well.
  • vaashievaashie Member Posts: 25 Arc User
    edited August 2013
    Tested on live and Mimic with GPF.

    Live: 3% per stack on target, capping at 9%

    Mimic: 3% no matter how many stacks applied.
  • ashgabarashgabar Member, Neverwinter Beta Users Posts: 6 Arc User
    edited August 2013
    I have a question will the PF debuff show up correctly on target dummys they have no armor have you tested this on any mobs yet
  • ogsplatogsplat Member, Neverwinter Beta Users Posts: 11 Arc User
    edited August 2013
    @vaashie and @stoxbox1: Thank you for testing.
    ashgabar wrote: »
    I have a question will the PF debuff show up correctly on target dummys they have no armor have you tested this on any mobs yet

    I haven't been in any epic dungeons on the test shard so I have no data for mobs over level 60. Attacking level 60 and below mobs out in the world on Mimic shows the 3% mitigation reduction regardless of GPF stacks for me.

    Assuming the target dummies are behaving the same as they do on live, the PF debuff does appear to function the same on mobs and target dummies.
  • stoxbox1stoxbox1 Member, Neverwinter Beta Users Posts: 18 Arc User
    edited August 2013
    Was just on the PTS with the latest patch and was out in Whispering Caverns testing, still 3%.
  • esteenaesteena Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 1
    edited August 2013
    i thought greater Plague fire stacks 3x15%? it is weird that it only stacks up to 9% @3 stacks in the live shard.
  • coolios1337coolios1337 Member Posts: 33
    edited August 2013
    If this is working as intended I guess its gonna be Terror enchantments across the board!
  • ogsplatogsplat Member, Neverwinter Beta Users Posts: 11 Arc User
    edited August 2013
    Just a quick note: The observed change to GPF documented in the OP is now on the live servers.
  • esteenaesteena Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 1
    edited August 2013
    ogsplat wrote: »
    Just a quick note: The observed change to GPF documented in the OP is now on the live servers.

    Could you explain to me why mitigation caps on 9% and not 15%x3 ? I'm really confused right now.

    Because GPF supposed to reduced opponent defense by 15% per stack , but based on your math ( which i'm not saying it is wrong) the mitigation caps at 9% @3rd stack excluding the fact that it doesn't stack anymore on the PTS.
  • ogsplatogsplat Member, Neverwinter Beta Users Posts: 11 Arc User
    edited August 2013
    esteena wrote: »
    Could you explain to me why mitigation caps on 9% and not 15%x3 ? I'm really confused right now.

    Because GPF supposed to reduced opponent defense by 15% per stack , but based on your math ( which i'm not saying it is wrong) the mitigation caps at 9% @3rd stack excluding the fact that it doesn't stack anymore on the PTS.

    Only thing I can say is the tooltip does not match the mechanic. I do not know what the correct "intended" behavior is.
  • esteenaesteena Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 1
    edited August 2013
    ogsplat wrote: »
    Only thing I can say is the tooltip does not match the mechanic. I do not know what the correct "intended" behavior is.

    Perhaps the presence of the Terror enchantment is making the issue, since it works 90% identically like Plague fire but it doesn't stack.

    Well the servers are down anyways so i can't test it myself. Thanks for clarification though, my patience with this game's developers is starting to run out.
  • silveralucardsilveralucard Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 410 Bounty Hunter
    edited August 2013
    we need an answer from a dev here how this is supposed to work?? this should stack 15% per hit (for max of 3 stacks or 45%) and do not stack with other GPF enchants
    Everything works out in the end . If it hasn't worked out yet, it isn't the end...
  • grimwoltgrimwolt Member, Neverwinter Beta Users, Neverwinter Knight of the Feywild Users Posts: 0 Arc User
    edited August 2013
    Still no word on if this is fixed or still broken?
  • sballarddevsballarddev Member Posts: 13 Arc User
    edited August 2013
    Hey, wanted to touch on some confusion. This enchantment directly reduces Defense, not Mitigation. On critters this is roughly 3% from Greater Plague Fire. The 45% Defense debuff will account for about 9% of their defense. As far as stacking, we have identified why they no longer stack properly and are working on a fix right now, but I don't have an ETA for that. Thanks!
    QA Tester
    Cryptic Studios
  • ogsplatogsplat Member, Neverwinter Beta Users Posts: 11 Arc User
    edited August 2013
    Hey, wanted to touch on some confusion. This enchantment directly reduces Defense, not Mitigation. On critters this is roughly 3% from Greater Plague Fire. The 45% Defense debuff will account for about 9% of their defense. As far as stacking, we have identified why they no longer stack properly and are working on a fix right now, but I don't have an ETA for that. Thanks!

    Thanks for the reply. Updating the OP to remove concept confusion and conflation.

    EDIT: On Mimic, I was attacking some Witherers and Giantsouls in Sharandar and could not get my numbers to reconcile with one 15% Defense debuff. Long story short, I am guessing Greater Plague Fire's Defense debuff is acting like a Perfect Terror enchantment (one stack at 20%.)

    Damage reduction formula from @freehugs9's stats thread: http://nw-forum.perfectworld.com/showthread.php?301761-Calculating-stats-and-their-effects
    freehugs9 wrote: »
    Defense
    Defense Tooltip = 49.99*Defense/(LevelConstant+Defense)
    Damage Resistance % = (0.005*(ArmorClass-10)+0.4999*Defense/(LevelConstant+Defense)*(1+FeatBonus))+AbilityBonu s
    ...where level constant for level 60 is 1643.6.

    I simplified the formula assuming these mobs do not have feats or ability bonuses that impact damage resistance and are considered level 60 for level constant purposes:
    Damage Resistance % = 0.005*(ArmorClass-10)+0.4999*Defense/(1643.6+Defense)

    Witherers have ~12.8% damage resistance. At a 15% Defense debuff, I cannot get any Armor Class (including negative ones) to work with Witherers, but at 20%:
    Witherer without Defense debuff:
    ArmorClass = 4; Defense = 760
    Damage Resistance % = 0.005*(4-10)+0.4999*760/(1643.6+760)
    Damage Resistance % = 0.005*(-6)+0.4999*760/2403.6
    Damage Resistance % =-0.03+0.158 = 0.128 = 12.8%

    Witherer with Defense debuff:
    ArmorClass = 4; Defense = 760*(1-0.2) = 608
    Damage Resistance % = 0.005*(4-10)+0.4999*608/(1643.6+608)
    Damage Resistance % = 0.005*(-6)+0.4999*608/2251.6
    Damage Resistance % = -0.03+0.135 = 0.105 = 10.5%

    Attacking a Witherer with Ray of Frost and GPF-enchanted weapon:
    Your Ray of Frost deals 306 (342) Cold to Witherer.
    (342-306)/342 = 0.105 = 10.5%

    Same result observed with Giantsouls, assuming ArmorClass = 20 and Defense ~= 578. 18% base damage reduction, ~16% after GPF debuff in current form.

    To be fair, I was able to make the numbers work at 30% defense reduced as well, but that put Giantsoul Armor Class over 30, which seems a bit high for a mob without a shield. Witherer Armor Class was at 18, which isn't unreasonable for a ranged caster.

    Either way, looking forward to another quashed bug.
  • silveralucardsilveralucard Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 410 Bounty Hunter
    edited August 2013
    Hey, wanted to touch on some confusion. This enchantment directly reduces Defense, not Mitigation. On critters this is roughly 3% from Greater Plague Fire. The 45% Defense debuff will account for about 9% of their defense. As far as stacking, we have identified why they no longer stack properly and are working on a fix right now, but I don't have an ETA for that. Thanks!

    thanks for the reply :) hope it gets fixed soon
    Everything works out in the end . If it hasn't worked out yet, it isn't the end...
  • fallout1111fallout1111 Member Posts: 71
    edited August 2013
    As do many of us!
  • grimahgrimah Member Posts: 1,658 Arc User
    edited August 2013
    according to a guildie, they tested it on each other in PvP (were on opposite teams), and it seemed to be working

    edit: nevermind asked further and looks like it was before patch.
    Creator of the featured survival horror foundry: "The Silence of Haydenwick" Video Review
    and also the featured satirical comedic adventure "A Call for Heroes".
  • grimahgrimah Member Posts: 1,658 Arc User
    edited August 2013
    Just tested it in pvp, i can confirm that its only apply 1 stack.
    Creator of the featured survival horror foundry: "The Silence of Haydenwick" Video Review
    and also the featured satirical comedic adventure "A Call for Heroes".
  • freedumb4evafreedumb4eva Member, Neverwinter Beta Users Posts: 342
    edited August 2013
    Thanks for putting this out there.
  • coolios1337coolios1337 Member Posts: 33
    edited August 2013
    Please fix ASAP!
  • kingculexkingculex Member, Neverwinter Beta Users Posts: 0 Arc User
    edited September 2013
    Doubt they will fix it anytime soon and will probably nerf everyone again. They still have not fixed the GWF unstoppable bug and the TR stealth bug. *shakes his head*
    Every class has advantages and disadvantages. Learn the disadvantages of you class to overcome them. Learn the advantages of your class and the disadvatages of other classes to use them in pvp to win.

    There is no point to whine for nerfs because you win some and loose some. Crying just makes a player look like a crier and no one, especially the devs, should take them seriously. Have a nice day!:)
  • silveralucardsilveralucard Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 410 Bounty Hunter
    edited September 2013
    at least terror is stacking with plague fire debuff we already test it and in fact the person with terror deals more damage once a stack of plague fire is in place :)
    Everything works out in the end . If it hasn't worked out yet, it isn't the end...
  • shananiganzzshananiganzz Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 0 Arc User
    edited September 2013
    " The 45% Defense debuff will account for about 9% of their defense."

    uhhh what? so whats the difference between Defense and defense. ohhh one has a capital D, so that must be that other defense..... can't forget about that other defense.....

    I feel like i bought a tv from bestbuy and the newest latest tv came out, and geeksquad showed up at my door with a baseball bat.
  • coolios1337coolios1337 Member Posts: 33
    edited September 2013
    Comeon fix allready please!
  • esteenaesteena Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 1
    edited September 2013
    uhhh what? so whats the difference between Defense and defense. ohhh one has a capital D, so that must be that other defense..... can't forget about that other defense.....

    I feel like i bought a tv from bestbuy and the newest latest tv came out, and geeksquad showed up at my door with a baseball bat.

    45% debuff to defense counts as 9% debuff to Mitigation. Defense is a flat number that gets translated to "Mitigation" which is your actual damage resistance and it is a percentage, that's why they are different.
  • cross2112cross2112 Member, Neverwinter Beta Users Posts: 62
    edited September 2013
    fix please...
  • shananiganzzshananiganzz Member, Neverwinter Beta Users, Neverwinter Guardian Users Posts: 0 Arc User
    edited September 2013
    I wish they could make tool tips a little more clear. Surely you can understand the reasoning behind the confusion. The way esteena phrased actually remotely makes sense. The way I originally read it from dev if you read it... And just listen to it.... Makes little to no sense at all.
  • edited October 2013
    This content has been removed.
  • pandapaulpandapaul Member, Neverwinter Beta Users, Neverwinter Guardian Users, Neverwinter Knight of the Feywild Users Posts: 424 Bounty Hunter
    edited October 2013
    I wouldn't count on it being fixed.. I wouldn't even count on it being a bug...

    From my experience as a GWF this is the process of what happens


    Something appears to be a bug.. Many complaints without any response...
    Weeks go by without a fix... People stop complaining..
    Then there is a ninja tooltip correction.. Confirming it was intended and not a bug

    Move on
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