Arcane spell failure

[Talok]

I have the 20% arcane spell reduction feat. I am wearing 20% of arcane spell failure worth of armor. I failed an arcane spell failure check. Another bug or am I missing something?

[Cirayu]

I think it's already factored in? - If it's heavy armour I believe that is USUALLY 40%, meaning it's NOW 20%.

[Naked Granny]

Are you sure it was an arcane spell failure check and not a concentration check?

Are you proficient with that armor?

Are you suffering from any demonic corruption?

Are you deafened or suffering from any other kind of debuff?

Are you sure your feat allows you to ignore 20 ASF? Or is it just 10%?

[Talok]

Originally posted by Cirayu:

I think it's already factored in? - If it's heavy armour I believe that is USUALLY 40%, meaning it's NOW 20%.

Lol no. Please read the post.

[Naked Granny]

Originally posted by Talok:

Originally posted by Cirayu:

I think it's already factored in? - If it's heavy armour I believe that is USUALLY 40%, meaning it's NOW 20%.

Lol no. Please read the post.

...

lol yes.

[Shadowmail]

Most likely corruption from rest is causing your issues.

[Talok]

Originally posted by Aunt Tony:

Are you sure it was an arcane spell failure check and not a concentration check?

Are you proficient with that armor?

Are you suffering from any demonic corruption?

Are you deafened or suffering from any other kind of debuff?

Are you sure your feat allows you to ignore 20 ASF? Or is it just 10%?

1. Yes. 100.
2. Yes. 100.
3. No corruption, Defending the tavern, 1st go around.
4. The only effect is the blessing of Torag. 100.
5. The 1st feat is 10%, the second feat gives 20% total.

[Talok]

Originally posted by Shadowmail:

Most likely corruption from rest is causing your issues.

Negative. No.

[Naked Granny]

Originally posted by Talok:

1. Yes. 100.
2. Yes. 100.
3. No corruption, Defending the tavern, 1st go around.
4. The only effect is the blessing of Torag. 100.
5. The 1st feat is 10%, the second feat gives 20% total.

What is the armor you are wearing?

[Talok]

Originally posted by Aunt Tony:

Originally posted by Talok:

1. Yes. 100.
2. Yes. 100.
3. No corruption, Defending the tavern, 1st go around.
4. The only effect is the blessing of Torag. 100.
5. The 1st feat is 10%, the second feat gives 20% total.

What is the armor you are wearing?

Studded leather (Armor of the Unbending, 15% ASF) and a light shield (5% ASF)

[Talok]

TBH it's probably a bug. The turn based mode is full of them.

[Uzkin]

I'm guessing Arcane Armor Mastery can only reduce ASF caused by the armor, not the shield. So you'd end up with 5% ASF if you have a light shield equipped.

[Myrryr]

Did you actually turn the feat on? Arcane Armor Mastery requires a swift action each round, so if you don't turn it on in the abilities tab, it does nothing. If you spend your swift or immediate action on something else, then it does nothing.

[Solo Cat Collector]

Originally posted by Talok:

TBH it's probably a bug. The turn based mode is full of them.

Originally posted by Uzkin:

I'm guessing Arcane Armor Mastery can only reduce ASF caused by the armor, not the shield. So you'd end up with 5% ASF if you have a light shield equipped.

That is correct. It's arcane ARMOR mastery. Ditch the shield and you're good to go Talok.
Would be nice if you could send us a screenshot or something of your char so we could take a look and possibly give you more tips.

[HoboOfSerenity]

Shields are not included in any of the arcane spell failure reduction features of the game, everything that reduces arcane spell failure only does so for armor. EXCEPT Bard and Skald proficiency. Both of these allow you to wield shields and have them not count towards any arcane spell failure so if you grab 1 bard or skald level OR cheat in the proficiency or one or both somehow then you can freely cast in light armor + shields(bard) or light/medium armor + shields(skald) without fear of arcane spell failure. This also works with the arcane spell failure reduction stuff. So for instance if you grab 3 levels of Hellknight Signifier(-5% ASF) And Arcane Armor mastery(-25% ASF) and 1 level of bard(No spell failure from shields) you can cast spells without any arcane spell failure when wearing a Mithral Full Plate (25% arcane spell failure) and a large shield.

The description on both bard and skald say that the 0ASF failure from shields only count for THEIR spells but it applies to ALL arcane spells. I've tested this myself as in my first playtrough I played an Arcanist/eldritch knight with 1 level of bard to use shields it's a bug/feature that carries over from Kingmaker where 1 level of bard did the same thing, and since Skalds are implemented similarly it should work with 1 level of that as well.

[Talok]

Originally posted by Uzkin:

I'm guessing Arcane Armor Mastery can only reduce ASF caused by the armor, not the shield. So you'd end up with 5% ASF if you have a light shield equipped.

This appears to be it. Some notation in the feat description or tool tip on the shield would be helpful. Thanks everyone for the help. Much appreciated.