Isma's Tear

  Fruit formed from a single hardened tear."''

 

 Once ingested it provides protection from the searing, acidic pools found in certain parts of Hallownest. 

Function
Acid shall be repelled.

Swim in acidic waters without coming to any harm.

Allows the player to swim in acid without taking damage.

How to Acquire
Located in Royal Waterways. Requires Crystal Heart.

Trivia
In the game files, this ability is referred to as "Acid Armour".