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From Pathfinder #170: Spoken on the Song Wind, which isn't enabled.

Fulminating Spear

ITEM 7
Price 360 gp
Usage held in 1 hand
Bulk 1
Category simple
Group spear
Damage 1d6 piercing

This +1 striking returning spear is warm to the touch. The head of the spear is crafted from gold with ivory inlay and has a ruby set into the shaft. You can make the spear glow like a torch or suppress its light by using an action, which has the concentrate trait.


Activate envision, Interact
Frequency once per day
Effect You touch the ruby and hurl the spear at a square within 40 feet. When the spear lands, it detonates, dealing 6d6 fire damage (DC 23 basic Reflex) to all creatures in a 10-foot emanation. It then flies back to your hand.
Pathfinder #170: Spoken on the Song WindOGL