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Poison Resist modifies poison damage rate by a percentage; PR -100% is the floor, while PR > 99% makes a unit Immune to Poison.
- Player and mercenary normally have a ceiling of PR 75%, but this can be increased to PR 95% by applying +% Maximum Poison Resist (although any excess can offset penalties that might otherwise reduce it below this ceiling). Difficulty level penalties of PR -40% in Nightmare and PR -100% in Hell (-20% and -50% respectively in Classic games) also apply to them.
- It is only applied whenever a new source of poison is applied, so removing it afterwards will have no effect on damage rate applied for current length; adding it after a target is poisoned will have no effect either. [1]
- It tends to be less important for player and mercenary due to the time it takes for poison damage to apply its total amount, allowing them to use an Antidote Potion or Well, or return to town to be healed, to cure themselves immediately (a player can also use a Resist Poison Shrine).
- Conversely, this means it is more important to reduce enemy resistance when applying poison damage, using Lower Resist and -% Enemy Poison Resistance.
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Item
Potion
1 Each potion adds 30 seconds to duration for which bonuses apply (+10% Maximum Poison Resist is also applied)
Charm
Small Charm
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(3-5)%
|
Beryl Small Charm
|
1
|
1
|
+(6-7)%
|
Viridian Small Charm
|
10
|
14
|
+(8-9)%
|
Jade Small Charm
|
20
|
27
|
+(10-11)%
|
Emerald Small Charm
|
32
|
40
|
Large Charm
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(4-7)%
|
Beryl Large Charm
|
1
|
1
|
+(8-10)%
|
Viridian Large Charm
|
12
|
16
|
+(11-12)%
|
Jade Large Charm
|
18
|
25
|
+(13-15)%
|
Emerald Large Charm
|
27
|
35
|
Grand Charm
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(7-15)%
|
Beryl Grand Charm
|
1
|
1
|
+(16-20)%
|
Viridian Grand Charm
|
7
|
10
|
+(21-25)%
|
Jade Grand Charm
|
15
|
20
|
+(26-30)%
|
Emerald Grand Charm
|
22
|
30
|
Any socket
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(5-15)%
|
Beryl Jewel
|
1
|
2
|
+(16-30)%
|
Jade Jewel
|
14
|
19
|
1 Both prefixes are in the same affix group as Fire Resist, Lightning Resist and Cold Resist prefixes
Helm
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl helm
|
1
|
1-4
|
+(5-10)%
|
Beryl helm
|
3
|
5
|
+(11-20)%
|
Viridian helm
|
9
|
12
|
+(21-30)%
|
Jade helm
|
13
|
18
|
Circlet
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(31-40)%
|
Emerald circlet
|
18
|
25
|
Amulet
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl Amulet
|
1
|
1-4
|
+(5-10)%
|
Beryl Amulet
|
3
|
5
|
+(11-20)%
|
Viridian Amulet
|
9
|
12
|
+(21-30)%
|
Jade Amulet
|
13
|
18
|
+(31-40)%
|
Emerald Amulet
|
18
|
25
|
Body armor
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl body armor
|
1
|
1-4
|
+(5-10)%
|
Beryl body armor
|
3
|
5
|
+(11-20)%
|
Viridian body armor
|
9
|
12
|
+(21-30)%
|
Jade body armor
|
13
|
18
|
Weapon
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(5-10)%
|
Beryl weapon
|
3
|
5
|
+(11-20)%
|
Viridian weapon 1
|
26
|
35
|
+(21-30)%
|
Jade weapon 1
|
41
|
55
|
1 Excluding orbs
Axe
Crossbow
Dagger
Orb
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl orb
|
1
|
1-4
|
+(11-20)%
|
Viridian orb
|
9
|
12
|
+(21-30)%
|
Jade orb
|
13
|
18
|
+(31-40)%
|
Emerald orb
|
18
|
25
|
Rod
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+(31-40)%
|
Emerald rod
|
18
|
25
|
Scepter
Staff
Spear
Sword
Shield
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl shield
|
1
|
1-4
|
+(5-10)%
|
Beryl shield
|
3
|
5
|
+(11-20)%
|
Viridian shield
|
9
|
12
|
+(21-30)%
|
Jade shield
|
13
|
18
|
1 Poison Resist +48% displayed due to +13% All Resistances
Shrunken head
Ring
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl Ring
|
1
|
1-4
|
+(5-10)%
|
Beryl Ring
|
3
|
5
|
+(11-20)%
|
Viridian Ring
|
9
|
12
|
+(21-30)%
|
Jade Ring
|
13 |
18
|
Belt
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl belt
|
1
|
1-4
|
+(5-10)%
|
Beryl belt
|
3
|
5
|
+(11-20)%
|
Viridian belt
|
9
|
12
|
+(21-30)%
|
Jade belt
|
13
|
18
|
Boots
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl boots
|
1
|
1-4
|
+(5-10)%
|
Beryl boots
|
3
|
5
|
+(11-20)%
|
Viridian boots
|
9
|
12
|
+(21-30)%
|
Jade boots
|
13
|
18
|
+(31-40)%
|
Emerald boots
|
18
|
25
|
Gloves
Value
|
Source
|
Min Rlvl
|
Min Alvl
|
+5%
|
Beryl gloves
|
1
|
1-4
|
+(5-10)%
|
Beryl gloves
|
3
|
5
|
+(11-20)%
|
Viridian gloves
|
9
|
12
|
+(21-30)%
|
Jade gloves
|
13
|
18
|
Set bonus
Skill
Necromancer
Skill
|
Poison Resist %
|
Min Rlvl
|
Lower Resist 1 2
|
- min(25 + [45 * [110*slvl / slvl+6] /100] , 70) in (2*slvl + 12) /3 yard radius for 2*slvl + 18 s
|
30
|
1 PR -% is rounded down to 1/5 when a unit is Immune to Poison, or becomes so due to the Poison Enchanted bonus
2 Not applied to units that cannot be cursed
- It is only applied whenever a new source of poison is applied, so removing it afterwards will have no effect on damage rate applied for current length; adding it after a target is poisoned will have no effect either. [2]
This Corpse Spitter needed to be cursed with Lower Resist to remove its poison immunity, but once it had been stabbed to apply poison damage it could be cursed with Decrepify and remain poisoned until death (although any subsequent poison damage would not be applied since it is once again immune).
Pet
Druid
Necromancer
Monster
Consult individual monster pages for poison resistance of a particular monster, or individual area pages for poison resistance of all monsters in a particular area.
- PR +75% is applied by the Poison Enchanted bonus. If this results in PR > 99%, it is only applied if a monster has less than two immunities beforehand (in which case it either becomes Immune to Poison, or increasingly so).
Reference
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