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From Pathfinder Society Special #3-98: Expedition Into Pallid Peril, which isn't enabled.

Raseri Kanton Skeleton

CREATURE 4
Perception +11; darkvision
Languages Common, Dwarven, Necril
Skills Athletics +13, Crafting +8, Intimidation +10
Str +5, Dex +2, Con +3, Int +0, Wis +1, Cha +2

AC 21; Fort +13, Ref +12, Will +9
HP 50; Immunities bleed, death effects, disease, paralyzed, poison, precision, unconscious; Resistances cold 5, electricity 5, fire 5, piercing 5, slashing 5
Collapse
Trigger The Raseri Kanton skeleton is critically hit

Effect The skeleton collapses into a pile of bones, and the attack deals only normal damage. The skeleton can reform in a standing position as a single action, but until it does, it's Immobilized and Off-Guard.

Speed 20 feet
Melee Greatpick +14 (fatal d12), Damage 1d10+7 piercing
Bone Missile

The Raseri Kanton skeleton yanks a rib from its ribcage to use as a javelin. The skeleton loses 4 HP, then makes a ranged Strike with an attack bonus of +10 that deals 1d10+11 piercing damage with a range increment of 20 feet.

Pathfinder Society Special #3-98: Expedition Into Pallid PerilOGL