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Iron Bones

(Magic of Faerun)

Transmutation
Level: Sorcerer 4, Wizard 4, Cleric 4,
Components:

As stone bones, except the target creature's skeleton changes to iron.
The creature gains a +5 natural armor bonus to AC.
Focus: A miniature skull made out of iron or steel.

Also appears in

  1. Spell Compendium
  2. Ghostwalk
  3. Tome of Battle: The Book of Nine Swords