a belt of invokation

Object 'belt invokation' is type armor, material leather.
Extra flags: glow hum psienhance.
Weight is 4, value is 11, level is 40.
Armor class is 18 pierce, 19 bash, 17 slash, and 10 vs. magic.
Affects managain by 5.
Affects mana by 50.
Affects hp by 10.
Rare item.