Fleshgem (Earthspeaker)Equipment 8
Source Pathfinder Lost Omens: The Grand Bazaar
Price 450 gp
Weight negligible
Originally developed as a body modification by oreads, fleshgems are crystals that can be implanted in the skin of a creature of any ancestry. While a fleshgem can be applied anywhere on the body for cosmetic purposes, the most common usage among adventurers is to implant them at the base of the fingers, to be used like brass knuckles.
You siphon your fleshgem's power, and the earth around you erupts in crystal stalagmites.
Activate 
to 
command
Frequency once per day
Requirements You are standing on the ground
Effect The ground around you erupts in a 10-foot burst of knee-high crystal shards that remain for 1 round, or 1 minute if you spent two actions. To all creatures other than you, the area is difficult terrain as well as hazardous terrain. Creatures that move through a space containing crystal shards take 2 piercing damage.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
EvocationEffects and magic items with this trait are associated with the evocation school of magic, typically involving energy and elemental forces.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
PrimalThis magic comes from the primal tradition, connecting to the natural world and instinct. Anything with this trait is magical.