Acid damage

This is a special and very powerful type of damage.

Very few NPCs use it, those few include Cockroach Queen, Toxin Ants, and Magma Stryekwyrms.

Acid works like this. Once you get hit, it starts to rust armor, rot wood, and burn flesh.

It effects different metals differently.


 * Iron: Quickest to be destroyed, 5 minutes.


 * Steel, Black, and White: Second quickest, 6 minutes.


 * Mithril and Adamant: 10 minutes.


 * Runite: 12 minutes.


 * Dragon: 20 minutes.

It does NOT affect metal in your inventory.
 * Bronze: 30 minutes.

You can also use it on any weapons poison can go on, to calculate how much time your weapon has it it gets destroyed, times the normal time by 5.

To use acid you must use an empty vial on the corpse of a recently killed Toxin Ant or Cockroach Queen.

Use oil on the metal before it has rust to save it.