Ironguard

(Spell Compendium, page 125, DnD 3.5)

Abjuration

Level: ; Sorcerer/Wizard 7
Components: V, S, M

This spell functions like lesser ironguard, except that the subject you touch is immune to magic metal as well.

Material Component: A tiny shield of wood, glass, or crystal.
Focus: A small nugget of adamantine worth 100 gp.