Argyrzei

Cursesense — The argyrzei can see and hear through any silver object it cursed, as long as the object is within 1 mile.

Headless — An argyrzei is headless but can still hear, speak, see, and smell as if it had a head. The argyrzei is immune to decapitation effects, such as those caused by vorpal weapons.

Soul Shred — Creatures killed by an argyrzei are difficult to bring back to life or to animate as undead. The argyrzei automatically attempts to counteract any attempt to resurrect or animate as undead any creature that it has killed (counteract modifier +23, counteract level 7th). If the argyrzei who slew the creature is itself slain, the creature can be brought back from death or become undead normally.

Infect Silver (concentrate, curse, occult) — Frequency once per day
Effect The argyrzei concentrates on an adjacent silver object that's no larger than 2 Bulk. That object becomes cursed; if the object is being carried, the object's carrier can resist the object becoming cursed with a DC 33 Will save. The argyrzei can maintain up to five curses simultaneously; if they infect a sixth silver item, the oldest cursed item becomes uncursed. See the sidebar on this page for details on cursed silver.
Infected Silver
RARE

CURSED

MAGICAL
Usage curses silver item

After 1 minute of carrying infected silver, it fuses to you. You become Clumsy 1 and remain so as long as the curse persists. As long as you remain cursed, you take a –2 status penalties to all saving throws against mental effects created by nindorus.

Manifest Silver Blade (concentrate, occult) — Sometimes, an argyrzei might manifest a different type of weapon than a blade—particularly if they're infiltrating or preying upon an organization that utilizes a signature weapon. In this case, the appearance of the silver blade can change and might inflict bludgeoning or piercing damage, but its other effects are unchanged.