Steelscour (Lesser)

A viscous acidic goo fills this glass vial, specially designed to eat through metallic objects. You can throw the steelscour as an alchemical bomb, targeting a metal creature or metal object held by a creature. It deals 1d8 persistent acid damage that ignores up to 5 hardness from metal. Steelscour has no effect on living or undead flesh and deals half damage to objects constructed of non-metal materials.

Instead of using steelscour as a bomb, you can pour it on an adjacent unattended metal object with an Interact action, automatically dealing the listed persistent acid damage for 5 rounds with no flat check to end the condition. When used this way, steelscour loses the bomb trait.