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Main article: Elemental damage

Acid damage is one of the 10 main damage types of the game, typically inflicted by spells or on-hit effects caused by weapons like the Flail of Ages. A weapon would cause Physical damage provided it goes through Armor Class, and then an additional effect could add elemental damage such as Acid.

Resistance to a damage type works as a percentage value that can go from -128 to 127:

  • At -50% resistance, a creature takes 150% damage
  • At 0% resistance, a creature takes full damage
  • At 100% resistance, it takes no damage
  • At 110% resistance, it is healed by 10% of the damage

In Enhanced Editions, resistance to Physical and Poison damage is capped at 100%, and damage that you're immune to no longer interrupts spellcasting.[1]

Protection from acid[]

Through the use of certain spells, items or abilities, it is possible to reduce the amount of damage, afflicted by acid.

Spells and Scrolls[]

Spells usually offer only temporary protection from acid, in varying degrees.

Items[]

Acid resistance items
Name Area of Effect Amount Duration
Protection From Acid (protection scroll) One creature 50% E 12 hours
Potion of Magic Shielding Self only 50% M,E 3 turns

Equipment[]

These items will provide elemental acid resistance as long as they are equipped.

Acid resistance equipment
Name Type Amount
Shadow Dragon Scale Studded leather armor 50%
Helm of the Rock Fighter-exclusive headgear 25%
Robe of Invocation Mage robe 20%
Aeger's Hide Hide armor 15%
Amulet of Abnormally Awesome Ankheg Summoning Necklace 15%
Gorgon Plate Plate mail armor 15%
Darksteel Shield Large shield 10%
Ring of the Tiny Fiend Ring 10%
Shield of Fyrus Khal Medium shield 10%
NOTE: This list is incomplete. You are encouraged to complete it.

Abilities[]

There are a few abilities that can offer temporary or constant protection from acid, such as:

NOTE: This list is incomplete. You are encouraged to complete it.

Permanent/Innate[]

Some characters start with, or can gain resistance to fire with no equipment or magic required.

  • Cavaliers have 20% resistance to acid innately.
  • Druids get resistance to fire, cold, and electricity at certain high levels. 10% at level 18, 20% at level 21, and finally 30% at level 24 (total, not cumulative).

Damage from acid[]

Many spells are based on acid, as well as some abilities, and items may deal bonus or even pure acid damage.

Spells[]

Due to their purpose of healing and supporting, the arsenal of acid-based spells is much smaller for priests than for wizards.

Items[]

...incomplete!

Abilities[]

… incomplete!

Creatures, protected from acid[]

Some creatures have a natural resistance against acid damage, some have a special item equipped that protect them. … incomplete!

Creatures, dealing acid damage[]

There's is a number of creatures that always or by will are able to deal acid damage, either naturally, via spells or through a special item in their equipment. … incomplete!

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