Rust Scarab
Level 5Attacks
Abilities
As long as it is immobile, the elemental can't be forcibly moved or knocked Prone. If it takes a move action, it loses this immunity until the start of its next turn.
A rust scarab ignores the Concealed condition from rust clouds.
When a rust scarab is reduced to fewer than half its maximum Hit Points or is damaged by a critical hit, its outer shell breaks into a veil of rusty metal flakes. This causes it to lose its resistance to physical damage and its heavy ability, but it gains a rust cloud aura and a 35-foot land Speed.
A rust scarab whose carapace is broken is constantly surrounded by a cloud of rust flakes that cause it to be Concealed from creatures more than 5 feet away from it.
Saving Throw DC 19 fortitude
Onset 1 week
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
Medium or smaller, claw, DC 23 reflex
These elementals resemble enormous beetles, with thick outer shells composed of multiple layers of heavily pockmarked, rusted plates protecting a jagged metallic skeleton.
Metal elementals can manifest in a wide variety of different forms, from shapeless amalgams of different metals to humanoid and beast-like monstrosities.
Metal Forms
Though metal elementals are made almost entirely of metal, most are composed of layers of different metals in tiny fragments, as complex as a body of flesh or plant matter. Many of these metals are rusted or decayed from the natural, slow entropy of the Plane of Metal.