pf2e.fyi
From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Smoldering Armor

ITEM 10
Price 975 gp
Bulk 2
Category medium
Group skeletal
AC Bonus +3
Dex Cap +2
Strength +2
Check Penalty −2
Speed Penalty −5 ft.

This +1 resilient fire-resistant niyaháat is often created to mark the passage of an Erutaki warrior into adulthood, formed from plates salvaged from the exploded remains of a firewyrm elemental, with larger pieces protecting the chest, shoulders, and head. As you fight, the armor glows red hot.


Activate (concentrate)
Frequency once per day
Effect The armor is sheathed in a Fire Shield.

Activate (concentrate)
Frequency once per day
Trigger You're dealt 30 or more fire damage, before any reduction from your fire resistance
Requirements You've used the fire shield activation already today
Effect The fire shield activation recharges.

Craft Requirements The initial raw materials must include the carapace of a firewyrm.
Pathfinder Treasure Vault (Remastered)ORC