Hamund Handbook Volume 1
Adventuring Gear
Very Rare
This roughly basket sized crystal radiates a field of energy
that disrupts the normal flow of the multiverse and prevents
magical forces from acting in its proximity. This crystal
creates an area of antimagic around itself, as in the antimagic
field spell, in a 150-foot radius. This field passes through all
solid objects except a layer of lead that is at least 1 inch thick.
This crystal cannot be deactivated (including in other
antimagic fields) and only stops functioning if it is destroyed.
The crystal has 30 hit points, 15 AC and is immune to poison
and psychic damage.
Cost: 20000 gp