Cold Iron Rapier

Weapon [Finesse, Cold Iron] Rare

A long, flexible blade with no discernable edge and a very sharp tip makes an excellent weapon for getting past shields and armor. This one has been manufactured from exotic cold iron. Counts as a magic weapon for overcoming resistances to Fey, Fiends, and Undead, and deals 1d4 extra damage to enemies in these groups. Cold Iron:

This metal is the remnant of the Elemental Chaos and the formation of the parallel planes - the Material Plane, the Feywild, and the Shadowfell. Heating the metal causes it to lose its special attributes. It is commonly used by the Shadar-kai in the Shadowfell, as it is particularly powerful against undead. It is a dark grayish-blue in color, and feels cool to the touch.