The Advanced Emergency Guardian Intervention System appears to be a unassuming necklace crafted from polished silver and strung with a single, milky rosé pearl. Upon closer inspection, the pearl shimmers with an inner light, hinting at the arcane energies held within. Legend tells of a regretful artificer who, haunted by the loss of companions they couldn't save in time, poured their genius into crafting the A.E.G.I.S. Pendant. This marvel of arcane engineering represents a desperate attempt to prevent such tragedies from ever recurring.

Shifting Form: As an action, you can focus on the A.E.G.I.S. Pendant and imagine a specific piece of jewelry. The pendant then transforms to match your vision, becoming a ring, earring, bracelet, or even a piercing (though it cannot pierce your flesh itself). It retains its magical properties regardless of the form it takes. Reverting the pendant to its necklace form is a bonus action.

A.E.G.I.S. Protocol: While attuned to this pendant, you are imbued with a failsafe mechanism. When you drop to 0 hit points, the pendant activates with a surge of arcane energy. After 1 round, the pendant emits a faint hum and a protective aura shimmers around you. At the end of this round, if you have not regained consciousness through magical or natural means, the A.E.G.I.S. core discharges in a burst of restorative power, mending your wounds and pulling you back from the brink of death. It restores 4d8+your Constitution modifier hit points.

Emergency Repairs: The A.E.G.I.S. pendant can only activate once per bearer. Upon activation, it expends its entire reserve of energy and shatters, leaving behind a pile of inert metal.

Curse of Fragility: The A.E.G.I.S. Pendant cannot be repaired or mended by magical means. Once it shatters, it is gone forever.

A life-saving spark: The A.E.G.I.S. Pendant's magic is keyed to a living essence, and its failsafe mechanism only functions for those with a beating heart. The undead, elementals, plants, and constructs find the pendant inert and unable to attune to it.

Notes: can only be attuned to by living humanoids