A clam shell shield

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Object 'a clam shell shield' is infused with your magic...
It is a level 20 armor, weight 8.
Locations it can be worn:  shield
Special properties:  none
Genres allowed:  sorcerer fighter divinity shaman
This armor has a gold value of 2000.
Armor class is 11.
Affects mana by 22.
Affects luck by 1.
Affects constitution by 1.
Affects hit roll by 3.
Affects hp by 8.
Affects charisma by 1.
Affects save vs rod by -1.