Random Magic Weapons (any level)

The wielder of a spellblade weapon is immune to a single spell chosen at the time the weapon is created. The selected spell must be one that is targeted against the wielder, not one that affects an area or creates an effect. When the wielder is next subjected to the chosen spell, the weapon absorbs it. On his next turn, he can opt to either let the spell drain harmlessly away or direct it at a new target as a free action.
Aura: Strong abjuration
Caster Level: 13th
Requirements: Craft Magic Arms and Armor, spell turning
Price: +6,000 gp
Source: Player's Guide to Faerûn