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From Pathfinder #206: Bring the House Down, which isn't enabled.

Gorum's Epitaph

COMPLEX HAZARD 15
Stealth +33 (master)
Description A section of ground thrusts up to form what looks like a mountain in which a sword has been impaled, and then the sword lashes out to stab at someone nearby. A successful DC 15 Religion check to Recall Knowledge is enough to note that the hazard looks very similar to Gorum's religious symbol; any character who is at least expert in Religion notes this automatically.

Disable DC 40 Thievery (master) to wipe away the faint runes scratched on the floor without activating a blade, or DC 43 Religion (master) to utter memorial prayers to Gorum to rob from the trap its violent energy

AC 37; Fort +32, Ref +23, Will +29
Hardness 24, HP 94 (BT 47); Immunities critical hits, precision

Erupting Burst
Trigger A creature steps into the square in which the trap is hidden

Effect The ground erupts upward in the shape of a mountain impaled by a +2 greater striking greater astral wounding greatsword. The triggering creature must succeed at a DC 36 Reflex save to avoid becoming Off-Guard until the start of their next turn (plus being knocked Prone on a critical failure). The trap then rolls initiative.
Speed 20 feet
Melee Greatsword +30 (magical), Damage 1d6 bleed plus 3d12+8 bludgeoning plus 1d6 spirit
Routine (3 actions) If the Gorum's epitaph is adjacent to a creature, it uses its three actions to make greatsword Strikes on that creature (determining targets randomly if more than one creature is adjacent). Otherwise, it uses actions to Stride toward the closest visible target, then uses any remaining actions to Strike that target. Gray Master can flank with a Gorum's epitaph.
Pathfinder #206: Bring the House DownORC