Scrabbling RibcageCreature 1
Source Pathfinder #181: Zombie Feast
Perception +6 (darkvision)
Languages none
Skills Athletics +6
Str +2, Dex +2, Con +2, Int -5, Wis +0, Cha +5
AC 16; Fort +7; Reflex +5; Will +5;
HP 20
Speed 20 feet (climb 20 feet)
Immunities precision
Weaknesses Bludgeoning 3
Resistances Cold 3, Electricity 3, Fire 3, Piercing 3, Slashing 3
Jagged Ribs
+7 (+2, -3) to hit 1d6+2 PiercingScrabble

Trigger A creature moves away from the scrabbling ribcage, or a creature Grabbed or Restrained by the scrabbling ribcage Escapes from it
Effect The ribcage Strides or Climbs. This movement doesn't trigger reactions.
Constrict
1d8 bludgeoning, DC 17 fortitude
The monster deals the listed amount of damage to any number of creatures Grabbed or Restrained by it. Each of those creatures can attempt a basic Fortitude save with the listed DC.
Skittering Rush
The scrabbling ribcage Strides or Climbs twice, with its Speeds increased by 10 feet for this movement.
Grab
Requirements The monster's last action was a successful Strike that lists Grab in its damage entry, or the monster has a creature Grabbed or Restrained
Effect If used after a Strike, the monster attempts to [/act grapple] the creature using the body part it attacked with. This attempt neither applies nor counts toward the creature's multiple attack penalty.
The monster can instead use Grab and choose one creature it's grabbing or restraining with an appendage that has Grab to automatically extend that condition to the end of the monster's next turn.
The ribs of a scrabbling ribcage are connected to either a sternum or vertebral column, but not both, allowing the ribs to function as legs.
Commonly mistaken for undead, animated bones are mindless constructs with no connection to necromancy. The following are examples of typical animated bones.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
ConstructA construct is an artificial creature empowered by a force other than vitality or void. Constructs are often mindless; they are immune to bleed, death effects, disease, healing, nonlethal attacks, poison, spirit, vitality, void, and the doomed, drained, fatigued, paralyzed, sickened, and unconscious conditions; and they may have Hardness based on the materials used to construct their bodies. Constructs are not living creatures, nor are they undead. When reduced to 0 Hit Points, a construct creature is destroyed.
MindlessA mindless creature has either programmed or rudimentary mental attributes. Most, if not all, of their mental attribute modifiers are –5. They are immune to all mental effects.