Corrosive Urn is a type of projectile in Dark Souls 2
- Acid thrown to destroy enemy's equipment.
- Does 5 durability damage to weapons/shields, 12 to armor, and 2 to rings.
- Blocking seems to decrease the effect dramatically.
- Sold by the Rat King for 700 souls.
- The Gutter.
- Dropped by corrosive ants near the third bonfire in Shrine of Amana.