pf2e.fyi
From Pathfinder #202: Severed at the Root, which isn't enabled.

Puncturing Spires

HAZARD 9
UNCOMMONMAGICALTRAP
Stealth +13 (trained)
Description A metal spire bursts from the ground, skewering the target and knocking aside other creatures.
Disable DC 30 Arcana or DC 30 Occultism (expert) to seal the planar breach, or DC 28 Nature (master) to magically reinforce the ground and prevent a spire's emergence.
Pierce Realm
Trigger A living creature enters the area
Effect A 60-foot-tall metal spire rises from the ground, puncturing the triggering creature and dealing 4d10+26 piercing damage (DC 32 basic Reflex save). On a critical failure, the creature is additionally impaled, becoming Grabbed until it Escapes. A creature that Escapes is 60 feet in the air. Additionally, all creatures within 10-feet of the spire take 2d10+13 bludgeoning damage (DC 32 basic Reflex save). On a failure, they're knocked Prone.
Pathfinder #202: Severed at the RootORC