Ba'aupa Mdoudu
CREATURE 13Tremorsense allows a monster to feel the vibrations through a solid surface caused by movement. It is an imprecise sense with a limited range (listed in the ability). Tremorsense functions only if the monster is on the same surface as the subject, and only if the subject is moving along (or burrowing through) the surface.
A ba'aupa mdoudu gains an additional reaction at the start of its turn but can use this reaction only to Slime Squirt.
Aba'aupa mdoudu can sense the presence of bones and skeletons within 60 feet; this is a precise sense when detecting dead bones but an imprecise one when detecting living bones.
Whenever a creature takes acid damage from any of a ba'aupa mdoudu's abilities or Strikes, it must succeed at a DC 30 Fortitude save or become Drained 1 (Drained 2 on a critical failure). On each subsequent failure, the drained condition value increases by 1 (or by 2 on a critical failure), to a maximum of drained 4.
The ba'aupa mdoudu spews copious amounts of acid into the air, creating a cascading rain to fall in a 10-foot emanation around itself. All creatures in the area take 14d6 acid damage (DC 33 basic Reflex save) plus Caustic Acid. The ba'aupa mdoudu can't use Caustic Rain again for 1d4 rounds.
A ba'aupa mdoudu can leave a tunnel when it burrows through earth or stone, and it usually does.