From Pathfinder #184: The Ghouls Hunger, which isn't enabled.

Crystallized Agony

HAZARD 11

Stealth +0

Description A violet crystal containing the body of a dead creature, grown from its dying agony, pulses as it exudes motes of flickering energy.

Disable DC 33 Thievery (master) or DC 35 Survival (master) to know where to Strike a specific crystal perfectly on a facet to cause it to shatter harmlessly

AC 31; Fort +18, Ref +24

Hardness 20, HP 80 (BT 40); Immunities critical hits, precision

Emit Agony (divine)

Trigger The crystallized agony is struck hard enough to take damage

Effect A shimmering mote of violet light flashes from the point of origin from the triggering action, unerringly striking the triggering creature. This bolt of agony deals 10d10 mental damage (DC 30 basic Fortitude).

Reset A crystallized agony resets automatically and can be triggered again the next round.

Pathfinder #184: The Ghouls HungerOGL