Rust Ooze

A rust ooze can sense nearby creatures through vibration and air or water movement.

Trigger The rust ooze is hit with a metal weapon

Effect The rust ooze deals 2d6 acid damage to the item, ignoring its Hardness.

A rust ooze has resistance 5 to metal weapons.

When a rust ooze critically succeeds at a pseudopod Strike, it deals 2d6 acid damage to a metal item the target is wearing or holding, ignoring the item's Hardness. If a creature uses the Shield Block reaction with a metal shield against a rust ooze's pseudopod attack, the shield is automatically broken, but no other item is rusted.

An infection introduced through open wounds, tetanus can produce stiffness, muscle spasms strong enough to break bones, and ultimately death.

Saving Throw DC 14 fortitude

Onset 10 days

Stage 1 Clumsy 1 (1 week)

Stage 2 Clumsy 2 and can't speak (1 day)

Stage 3 Paralyzed with spasms (1 day)

Stage 4 death