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

Ouroboros Buckles

ITEM 19

RARE ADJUSTED COMFORT

Price 40000 gp

Bulk 1

Category light

Group leather

AC Bonus +2

Dex Cap +3

Strength +1

Check Penalty −1

This ominous-looking +3 greater resilient greater acid-resistant buckle armor is deep red in color, favored by assassins who worship Norgorber or Asmodeus, and if unfastened, the many belts and buckles writhe like living snakes. Its form and abilities were inspired by ouroboros, embodiments of eternity that continually consume and regenerate their bodies and appear to be formed from masses of snakes. Ouroboros buckles have the comfort trait. However, while wearing ouroboros buckles, the unfathomable concept of infinity pulls at your mind, and each time you awaken, you'd swear the armor hissed into your ear while you were asleep. The hissing suggested secret wisdom to you in Aklo, though you only ever remember it vaguely, like a fading dream.

Activate (concentrate, manipulate)

Frequency once per day

Effect You call forth the cursed regenerative blood of an ouroboros to recover from your wounds. You gain regeneration 15 for 1 minute; fire damage deactivates this regeneration. Each time you regain Hit Points from this regeneration, if you're in your normal form, you collapse into a Large swarm of Tiny snakes. This is a polymorph effect that changes you into a battle form.

When you're a swarm of snakes, you gain low-light vision, imprecise scent (30 feet), a Speed of 20 feet, a climb Speed of 20 feet, and a swim Speed of 20 feet. You have an AC of 16 + your level and ignore your armor's check penalty and Speed reduction. Also, you gain resistance 5 to physical damage and weakness 5 to area damage and splash damage. You can use none of your normal Strikes. Instead, you can use Swarming Bites, a single action that deals 4d4 piercing plus 2d6 poison damage to creatures in your space with a DC 41 basic Reflex save.

If you're in this battle form and are already at full HP when your regeneration occurs, the snakes instantaneously slither together, and you transform into your original form.

Effect: Ouroboros Buckles

Effect: Ouroboros Buckles (Swarm of Snakes)

Activate (concentrate)

Frequency once per minute

Trigger A foe within 15 feet hits you with a Strike that deals slashing or piercing damage

Effect Your ouroboros buckles spray acidic blood in a 15-foot cone toward the foe, dealing 5d6 acid damage with a DC 41 basic Reflex save.

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