"Well, yeah," Kagome said after a thoughtful gulp. "Seal effect depends on chakra being in the right pattern, and the stability of an infusion depends on each intermediate pattern being stable. He pulls chakra away, does it in a different order than the infusion, now there's a different pattern. Way more bad patterns than good ones, chances say boom, squish, no more Nobby."
So I have a quick objection to this scene. As is, it really seems like the sort of thing covered by the time we got Sealing 1. Just a ludicrously basic piece of mechanics knowledge.
Barring that, this suggests a number of interesting possibilities. If Nobby has a (sufficiently long) path of water to drain a seal, he can start triggering fail-cthulus at will. This gets even more useful once he becomes able to drain through mist.
Speaking of which
@eaglejarl @Velorien: What's Nobby's estimate for the VD skill needed to drain chakra through mist? (In the same way that Hazou was able to give us an estimate of Kagome's current sealing level. Basically what're his 95% confidence interval and the expected value? We'll understand if the range is pretty large)
There's also the option of a chakra connecting seal that can be used to disable another seal. One that, after a timer, sets up a stable chakra pattern that extends a few mm away from itself. When the normally stable chakra structure connects with the chakra structure of another seal, they "combine" likely creating a new seal that's broken and causing a fail-cthulu.
Honestly, something like this should probably be part of the standard anti-sealmaster toolkit. It's dangerous, since you'll get a random failure mode, the severity of which scales with the amount of chakra in the target seal and it requires physical contact to set up. But despite that, it'll often be better than letting the seal do what the enemy sealmaster designed it to do.
1. Curved barriers
1.1. Spherical barriers that emanate from a point
1.2. Dome barriers, either emanating from a point or defined similar to normal barriers
2. Paired seals that, when activated, attempt to move to a particular distance/orientation relative to each other.
ex: Put the seals on two wooden cubes, then activate them. Seals will try to move the cubes so that they are 1 yard apart with the faces the seals are on facing each other
2.1. Paired seals that can release a chakra pulse (or some other signal that could trigger another seal) when in position.
2.1.1. Tripwire seals that trigger when they are a certain distance from each other.
2.2. Seals that attract/repel each other.
I like this, I should make up a set of experiments for playing with force wall derived seals. That way we can figure out how they work. Also new safety procedures for dealing with this.
One idea, if we can make barriers with volume is to create lenses. Air and vacuum have very slightly different refractive indices and enough thin lenses should add up to be more powerful than a single lens of equivalent thickness
1. This is particularly true for fresnel lenses.
[1]: If my mental calculations are right, but it's 6 am and I'm not really awake. Someone mind checking for me?
1. Fuel Air Burst Seal Machine (cost effective? would it just make more sense to create a bigger explosive seal?)
1.1. Most basic would be a storage seal filled with oil/sawdust/flour and an explosive seal, linked via a tripwire. Storage scroll is set to violently eject contents, aerosolizing them. Explosive seal triggers them for increased boom.
1.2. If storage seals can't do the aerosolized release, add in an implosion seal, and set the storage seal to release when it detects a sudden drop in pressure.
We've got this already. We call it the Macerator seal, and we will eventually use it to make smoothies. Delicious, perfectly blended (down to the molecular level) smoothies.
See my sig or the wiki for details.
2. Cage Of Death Seal Machine: this one is dependent on curved barriers or orientating seals. Not sure if they would offer any improvement over existing shaped charges.
2.1. Simplest is a spherical barrier + explosive seal. Assuming the spherical barrier snaps into existence at a set radius rather than expanding (so it traps things inside). Maximizes effect of explosive in a set area.
Also good ideas, keep in mind that implosion seals, fuel air explosions, and many other conventual explosives get much of their power from the pressure shockwave. One which won't exist to the same extent if a wall keeps external air from rushing in.
One of these with an implosion seal or fuel air seal are likely to suffocate any occupants more than explode them, with some additional burning for the latter. An energy release explosive will also be weaker, but isn't likely to work fundamentally differently.
The best sort of explosive to use here is something with shrapnel that will bounce around the cage for a while pulping what's in it.
Also a version of this with small gaps would be useful for creating air seals. Triggering an implosion seal would fill it with air, but a small gap means only a slow trickle of air will enter the cage. This means the pressure wave that usually destroys the seal won't happen, and you have a storage seal filled with air. I'm sure we can find tons of uses for this.
2.2. Assuming orientating seals work:
2.2.1. Eight cubes set up so that when triggered, they will try to become the vertices of a larger cube. One cube is set up so that it will move to the center of the cube.
2.2.2. Vertex cubes are set up so that when they are in place, they will enclose inside of cube in force barriers.
2.2.3. Center cube is covered in explosive seals that go off when it is in position.
I have genuinely no clue what you're trying to do with this.
