Feat: Geobukseon Retaliation
Access Tian Xia origin
Trigger You would take damage.
Your armor has a retractable spike-covered shell reminiscent of Hwanggot's heavily armored geobukseon, or "turtle ships." The shell unfolds across your body, giving you a +4 circumstance bonus to AC and resistance 2 to bludgeoning, piercing, and slashing damage until the end of your next turn. Spiked chains propelled by small bursts of black powder also erupt from the shell, dealing @Damage[3d4[piercing],2[persistent,fire]|options:area-damage] damage (Basic Reflex save against your class DC) to all creatures in a 5-foot type:emanation.