Goldgorger

The goldgorger ignores the Concealed condition from rust clouds.

5 feet. The goldgorger continually leaks tiny fragments of partially digested gold into the air around it. Any creature that ends its turn in the aura takes 8d6 acid damage with a DC 37 reflex save. A creature that critically fails is also Sickened 1.

Any time the goldgorger scores a critical hit with an adamantine bite attack, it deals the same amount of damage to any metal armor worn by the target, automatically bypassing any Hardness lower than 20. If a creature uses the Shield Block reaction with a metal shield against a goldgorger's adamantine bite, the shield is automatically broken, but no other item takes damage from that attack. Unattended metal items automatically take full damage from a goldgorger's adamantine bite, ignoring their Hardness if it's lower than 20.

The goldgorger belches forth a cloud of caustic debris from its maw, filling a cube adjacent to it that's 10 feet on each side. Any creature in this area takes 6d10 acid,6d10 slashing damage (DC 40 reflex save). The ground under the cloud is difficult terrain for 1 hour, after which the shrapnel crumbles to dust. The goldgorger can't use Searing Spew again for 1d4 rounds, but the ability recharges if the goldgorger damages an item with devour metal.