pf2e.fyi
From Pathfinder #195: Heavy is the Crown, which isn't enabled.

Stone Brawler

ARCHETYPE
UNCOMMON

Stone brawlers learn to encase themselves in temporary, magical rock that empowers their unarmed strikes and defends their bodies. Their relationship to stone is often transactional, and they call on the resilient material for utilitarian purposes. Most stone brawlers view rock as a tool to be utilized in the heat of battle, much as a fencer values their sword or a wizard their magic.

The practice of conjuring stone is most common where resources are scarce, such as Belkzen, the Lands of the Linnorm Kings, or within the Darklands, where the value and resilience of stone is well known.

Stone Brawler Dedication Feat 2

UNCOMMONARCHETYPEDEDICATION
Prerequisites Constitution +2

You've learned to call the primal power of elemental stone to your aid. You gain the Stonestrike Stance action.

Stoney Skin Feat 4

ARCHETYPE

Your skin takes on the hardness of stone. You gain resistance to physical damage (except adamantine) equal to your number of class feats from the Stone Brawler archetype.

Stoney Deflection Feat 6

ARCHETYPE

Requirements You are in Stonestrike Stance.

You gather the resiliency of stone to block attacks against you. You gain a +2 circumstance bonus to AC and to any defenses against being Shoved or Tripped until the beginning of your next turn.

Ore Fists Feat 8

ARCHETYPE

When you enter the Stonestrike Stance, your fists appear to be covered with veins of unrefined ore. Your stonestrike attacks count as cold iron and silver when determining weaknesses and bypassing resistances.

Stonebane Feat 10

ARCHETYPE

Your stonestrike attacks deal 1d6 additional damage against constructs, creatures with the earth trait, and earthen objects, such as a stone door.

Adamantine Fists Feat 16

ARCHETYPE

You imbue your unarmed strikes with one of the strongest metals. Your stonestrike attacks are treated as adamantine.

Pathfinder #195: Heavy is the Crown