Woodweave CaterpillarCreature 12
Source Pathfinder #203: Shepherd of Decay
Perception +22 (darkvision)
Languages none
Skills Acrobatics +20, Athletics +25, Survival +20
Str +7, Dex +4, Con +6, Int -5, Wis +4, Cha -4
AC 33; Fort +24; Reflex +20; Will +22;
HP 255
Speed 40 feet (climb 40 feet)
Weaknesses Axe Vulnerability 10, Fire 10
Bite
+25 (+20, +15) to hit (reach 10) 3d10+13 PiercingBristles
+25 (+20, +15) to hit 3d8+13 PiercingFoot
+23 (+18, +13) to hit (unarmed) 3d10+11 BludgeoningFerocity

Trigger The monster is reduced to 0 HP.
Effect The monster avoids being knocked out and remains at 1 HP, but its Wounded value increases by 1. When it is Wounded 3, it can no longer use this ability
Reactive Strike (Special)
Bristles only. The woodweave caterpillar gains an extra reaction at the start of each of its turns that it can use only to make a Reactive Strike. It can't use more than one Reactive Strike triggered by the same action. In addition to the normal trigger, the caterpillar can make a Reactive Strike against a creature that touches it or an adjacent creature that attempts a melee Strike against it.
Trigger A creature within the monster's reach uses a manipulate action or a move action, makes a ranged attack, or leaves a square during a move action it's using.
Effect The monster attempts a melee Strike against the triggering creature. If the attack is a critical hit and the trigger was a manipulate action, the monster disrupts that action. This Strike doesn't count toward the monster's multiple attack penalty, and its multiple attack penalty doesn't apply to this Strike.
Penetrating BristlesOn a critical hit with a bristles Strike, a woodweave caterpillar's bristles lodge in the target's body, causing severe pain and blood loss. They deal 3d6 bleed damage, and the target is Off-Guard as long as the persistent damage continues.
Trample
Medium or Smaller, foot, DC 32 reflex
The monster Strides up to double its Speed and can move through the spaces of creatures of the listed size, Trampling each creature whose space it enters. The monster can attempt to Trample the same creature only once in a single use of Trample. The monster deals the damage of the listed Strike, but trampled creatures can attempt a basic Reflex save at the listed DC (no damage on a critical success, half damage on a success, double damage on a critical failure).
Traits
This rarity indicates that a rules element is very difficult to find in the game world. A rare feat, spell, item or the like is available to players only if the GM decides to include it in the game, typically through discovery during play. Creatures with this trait are rare. They typically can't be summoned. The DC of Recall Knowledge checks related to these creatures is increased by 5.
AnimalAn animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence attribute modifier over –4, can't speak languages, and can't be trained in Intelligence-based skills.
WoodEffects with the wood trait conjure or manipulate wood. Those that manipulate wood have no effect in an area without wood. Creatures with this trait consist primarily of wood or have a connection to magical wood.