Armor of Vulnerability (Plate Armor)

D&D 5e · 2024·Heavy armor·Rare·Requires attunement

Armor type

Armor Class

18flat

Your Dexterity modifier does not change this Armor Class, up or down.

Armor Class calculator

AC 1818−10 ft. Speed at this Strength

Category: Heavy armor
Dex bonus: None
Stealth: Disadvantage
Strength: Str 15 (else −10 ft. Speed)
Weight: 65 lb
Don / doff: 10 minutes / 5 minutes
Rarity: Rare
Price: Not specified

Magic: The GM chooses or randomly determines one damage type for this particular armor. The template does not grant Resistance to all listed options.

Calculator assumptions & rules

Uses this entry’s AC formula, Dexterity cap and listed shield bonus. Magic AC already included in the entry is counted once. Features, spells, alternative AC formulas and exceptions to Strength penalties are excluded. You still need the required armor training or proficiency.

Changing calculator inputs does not change the item’s rules or create a new page URL.

Armor of Vulnerability AC by armor type

Choose a published armor variant to see its full statistics and calculator for this edition.

Armor of Vulnerability variants in the 2024 edition
Armor	Armor Class	Category	Stealth	Strength	Weight
Padded Armor	11 + Dex	light	Disadvantage	—	8 lb
Leather Armor	11 + Dex	light	—	—	10 lb
Studded Leather Armor	12 + Dex	light	—	—	13 lb
Hide Armor	12 + Dex (max 2)	medium	—	—	12 lb
Chain Shirt	13 + Dex (max 2)	medium	—	—	20 lb
Scale Mail	14 + Dex (max 2)	medium	Disadvantage	—	45 lb
Breastplate	14 + Dex (max 2)	medium	—	—	20 lb
Half Plate Armor	15 + Dex (max 2)	medium	Disadvantage	—	40 lb
Ring Mail	14	heavy	Disadvantage	—	40 lb
Chain Mail	16	heavy	Disadvantage	Str 13	55 lb
Splint Armor	17	heavy	Disadvantage	Str 15	60 lb
Plate Armor	18	heavy	Disadvantage	Str 15	65 lb

What Armor of Vulnerability does

AC 18 does not improve with Dexterity. Compare armor options using your actual Dexterity modifier rather than their base AC alone.
It imposes Disadvantage on Stealth checks; consider that cost if the group relies on sneaking.
Strength 15 avoids this armor’s listed Speed penalty. The calculator flags the penalty when your Strength is lower.
This item uses one of your attunement slots. Compare its benefit with the other items you want to keep attuned.

While wearing this armor, you have Resistance to one of the following damage types: Bludgeoning, Piercing, or Slashing. The GM chooses the type or determines it randomly. Curse. This armor is cursed, a fact that is revealed only when the Identify spell is cast on the armor or you attune to it. Attuning to the armor curses you until you are targeted by a Remove Curse spell or similar magic; removing the armor fails to end the curse. While cursed, you have Vulnerability to two of the three damage types associated with the armor (not the one to which it grants Resistance). This is the Plate Armor variant.

Full item details & properties

Magic properties

Activation: While wearing this armor.
Consumable: No
Resistance type: Choose 1: Bludgeoning, Piercing, Slashing. GM choice or random determination. No type selected in this template.
Curse: Triggered by attunement; revealed by Identify spell or attunement.
Vulnerability while cursed: The other two types among Bludgeoning, Piercing and Slashing
Ending the curse: Remove Curse spell or similar magic. Removing the armor does not end the curse.
Conditions & limits: The GM chooses or randomly determines one damage type for this particular armor. The template does not grant Resistance to all listed options. This property adds no Armor Class bonus. The base armor's Strength, Stealth and Dexterity rules remain unchanged. Attuning curses you. While cursed, you have Vulnerability to the other two physical damage types. Taking the armor off does not end this curse; Remove Curse or similar magic is required. Resistance requires wearing the armor.

Armor details

Armor Class: 18
Category: Heavy
Dexterity modifier: Not added
Strength to avoid Speed penalty: 15
Stealth disadvantage: Yes
Don: 10 minutes
Doff: 5 minutes

Tags & related references

Rare →CursedDamage Resistance ChoiceDamage Vulnerability ChoiceHeavy ArmorMagicalRequires AttunementStealth DisadvantageArmor →

Compare alternatives

Same edition, using your calculator inputs above. Special properties and character features can change the choice.

Armor of Vulnerability (Plate Armor) · currentAC 1818 AC · Stealth DisadvantageNot specified · 65 lb Armor of Resistance (Plate)AC 1818 AC · Stealth DisadvantageNot specified · 65 lb

Same base armor; compare magical benefits

Plate Armor (+1)AC 1919 AC · Stealth DisadvantageNot specified · 65 lb

Same base armor; compare magical benefits

Adamantine Armor (Plate)AC 1818 AC · Stealth DisadvantageNot specified · 65 lb

Same base armor; compare magical benefits

Armor of InvulnerabilityAC 1818 AC · Stealth DisadvantageNot specified · 65 lb

Same base armor; compare magical benefits

Armor of Vulnerability FAQ

What Armor Class does Armor of Vulnerability (Plate Armor) give?

It starts at AC 18. Dexterity does not change its AC, whether your modifier is positive or negative.

Does Armor of Vulnerability require attunement?

Yes. You need to attune to this item to use the properties that require attunement.

What if my Strength is below 15?

The armor lists a 10 ft. Speed penalty below Strength 15. The calculator flags it; character features may provide exceptions.

Is the listed price a guaranteed purchase price?

The source does not specify a price for this entry. Ask your GM about availability and cost.