the High Guardian's facemask

Object 'mask facemask High Guardian's' is type armor, material steel.
Extra flags: antievil noremove.
Weight is 5, value is 35, level is 40.
Armor class is 14 pierce, 14 bash, 14 slash, and 8 vs. magic.
Affects ac by -25.
Affects mana by 25.
Affects hp by 10.