Cthonic

CR

1+

Traits

Earth Subtype
Burrow speed should equal creature’s fastest movement speed

If CR 7 or less with a range equal to the creature's burrow speed

If CR 8 or greater with a range equal to the creature's burrow speed

Natural melee attacks bypass DR/cold iron
If the creature is from the Elemental Plane of Earth, it gains the extraplanar subtype when it isn’t on that plane

Cthonic creatures are native denizens of the Elemental Plane of Earth or underground environments, and they have adapted to exist in dirt and rock.

Source

Alien Archive pg. 150

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