From Compendium of Worldly Lore
Needs review
Source: Encyclopedia Arcane: Magic Item Compendium
Description: You have a natural resistance to spell and spell-like effects generated by magical items.
Prerequisites: Iron Will, WIS 15
You gain a +2 innate bonus to resist all spell and spell-like effects which originate from magical items of any type. Further you gain damage reduction 2/nonmagical, meaning you suffer 2 points fewer damage whenever you are struck by a magical weapon of any sort. This natural resistance to the effects of magic items does not prevent you from using magic items yourself, so you need not fail a save to benefit from a potion of cure light wounds, for example.
Special
You can select this feat twice. The second time, your innate bonus to resist spells and spell-like effects cast from magic items increases to +4 and your Damage Reduction increases to 4/magical.