Armor ability to reduce Arcane Spell Fail chance?

[Phaedrus]

I swear I saw a magic armor ability that reduces ASF... but I can't remember the details or the source. Can anyone help? (I'm asking about WOTC products)

The cleric just discarded his mithral chain shirt for a +1 Mithral Breastplate. The wizard is thinking of spending a feat for light armor proficiency IF he can get rid of the spell failure chance... is there such an ability?

I know Monte's Book of Eldritch Might II has "Spellcasting", which would do the trick: Reduce spell failure chances by 15% as a +2 ability. A +2 ability is expensive... if the wizard goes through with it it will be for flavor/roleplay reasons, not so much because it makes sense financially. 9000 gp and a feat for a +5 armor bonus... hmmm.

 

[Just_Hal]

I swear I saw a magic armor ability that reduces ASF... but I can't remember the details or the source. Can anyone help? (I'm asking about WOTC products)

The cleric just discarded his mithral chain shirt for a +1 Mithral Breastplate. The wizard is thinking of spending a feat for light armor proficiency IF he can get rid of the spell failure chance... is there such an ability?

I know Monte's Book of Eldritch Might II has "Spellcasting", which would do the trick: Reduce spell failure chances by 15% as a +2 ability. A +2 ability is expensive... if the wizard goes through with it it will be for flavor/roleplay reasons, not so much because it makes sense financially. 9000 gp and a feat for a +5 armor bonus... hmmm.

Saw a reference in the PHB II under the Duskblade, think it is Twilight Armor

 

[Shadeus]

That right. It was originally published in the Book of Exalted Deeds. It's a +1 ability for a -10% to the ASF.

 

[blargney the second]

The Explorer's Handbook for Eberron has a twilight armor ability that lowers ASF. It's -10% for a +1 bonus.

 

[Phaedrus]

Thank you, all. I have the PHB2... and knew I'd seen it in a sidebar somewhere, but couldn't for the life of me remember where.

 

[genshou]

The special material shadow silk from Tome of Magic reduces ASF when in darkness or shadowy illumination. You can get padded or leather at 0% ASF in darkness, or hide at 5% ASF in darkness. Best used in a party where everyone has Darkvision and you plan to spend a lot of time underground.