Warded / Painted Man Ward system

[EvaUnit]

I've been reading about other peoples ideas on how to work the ward system from the Warded/Painted Man book series. In the series there are demons that come during the night and the only true defense against such creatures are wards, drawn symbols that, once drawn properly create a ward net (usually in the form of a Ward circle) that can keep demons from crossing. The wards lie on the ground and create an invisible wall of magic.
I have been thinking as to how I would go about a warding system and I believe I've figured out a system better than what I've seen so far (no offense). So far people have said that the wards should have HP or the demons have to beat the wards strength with their CMB. These weren't bad ideas; but, I think these systems are forgetting a key aspect of how a ward net works.
Ward circles, even if they aren't the greatest wards around will still protect you just fine. They won't "break"; but, there may be small holes in the ward net that only the trained eye can catch that a demon might find by chance. That is what other systems always forget. This, is my system.

You would make a craft: ward check to create your Ward circle. the DC of that check would be rather high in my opinion; but, you might have it lower. for me, a DC of 20 seems about right. If you make the DC, then your ward circle is complete enough to last the night.
There is also the amount of time you spend on the wards and the size of the area you are warding.

Here is a chart for the size of the Ward circle and time it takes. Very important.

Chart

If you make the DC, the Ward lasts the night.
If you do not make the DC, the Ward Circle has a percent chance to fail based on how much you failed the DC by.

For every 1 below the DC, there is a 5% chance of the wards failing at some point during the night.
Meaning:
19: 5%
18: 10%
17: 15%
16: 20%
15: 30%
and so on...

This is the system a friend and I have come up with and we'd like to hear some feedback. We know we can't get it to work exactly like it would in the Warded/Painted Man;but, this is as close as we could get and it still working reasonably within the Pathfinder system.

[BobtheSamurai]

Have you given any thought to the mechanics of the combat wards?

[EvaUnit]

BobtheSamurai wrote:

Have you given any thought to the mechanics of the combat wards?

I would imagine that the combat wards would just make weapons viable against demons. It would make it possible for your weapons to injure a demon with an extra +1 to +5 magic description, depending on how well you ward the weapon, how much time you spend, how fine the size of the warding is, etc.

It would also depend on how you or your players describe their warding, if they use impact wards on a cutting weapon, there is not much surface area for the impact ward to flare. Even pressure wards (like that on Renna's necklace) could be used creatively. Also the heat wards are useful (Renna also used these creatively).

You could also make it so that the more you or a player use the warded weapon the weapon grows in strength, like it would in the real book, for example, the warded glass.

This is just me thinking for a moment, I might post a more concrete weapon system later. :)