Random Magic Armor (any level)

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(Self-revealing) valued at 18,165 gp.
Invulnerability Ability

This suit of armor grants the wearer damage reduction of 5/magic.
Aura: Strong abjuration and perhaps evocation (if miracle is used)
Caster Level: 18th
Requirements: Craft Magic Arms and Armor, Stoneskin, Wish or Miracle
Price: +3 bonus
Source: Dungeon Master's Guide v.3.5