#isolated space

If it was a normal Information Flare, the entire Village below Delilah and Delilah herself would've been crushed to dust by the density of the information.

As such, this was a temporary "isolated space" that resulted instead of a small-scale teleportation.

The epicenter of the Teleportation Spell would have shifted Delilah's person to a certain location, but where that location would be isn't entirely stable or known… however the outer "isolated space" was caught in that information, basically trapping the village and people inside the space.

But because that was only a temporary state, as soon as Delilah were to teleport, the space between this world and the Backyard would have shifted locations and positions… effectively sending anything that wasn't Delilah in to the Backyard and destroying it.

What we know so far about smaller-scale Teleportation is that the bigger the distance, the more time it takes for a spell to be initialized. And so far, only Bedman and Izuna can cast long-range teleportation spells successfully (Axl Low might also be capable of them, but he currently doesn't know the precise method how. Even I-No's abilities far exceed any normal "spell logic" that is currently understood.)

However, Delilah messed up her Theory (casting attempt) and it caught the entire village inside the slowly-collapsing dense space.

When Sol last entered Bedman's Nightmare Theatre Space, he stated that it was "similar, yet different" from that of the Backyard… he could still feel the pressure to a minor extent, but it was stable enough to exist inside.

Asuka R. Kreutz also used a similar method to meet with Axl Low as well… Axl even said he could feel the "pressure" as well (though I-No told him to try and ignore it).

Anyway, the reason we can say it is very similar to the Absolute World is because of the "overlap" that was created.

There was enough dense information in the space to crush the average person (even Ramlethal was being affected by it, though Baiken willfully chose to ignore it as best as she could)… the only person who WASN'T influenced by the density of the space was Delilah herself!

Now, either that is because Delilah's spell created a "safe exception" for Delilah as the "center" of the spell… or it is because the "space" was still "stable enough" (at the time) for her to exist inside it.

Ramlethal was preparing herself to "protect" Delilah during the Teleportation process, since it wasn't clear where the spell would send either of them if it wasn't successfully stopped. Ram would most likely have to (in the worst case scenario) create a "barrier" around Delilah that would at least protect her from the Backyard's information until they could find a way back in to normal space.

In terms of function, perhaps, but not in terms of cost.

Most OutRage Jinki require a base amount of Mana (Houriki) to be used and even controlled.

In terms of what the Thundersealed Sword did, even Ky himself is not aware the reason it activated in response to his need in saving Dizzy.  If anyone would know the real powers that the Jinki have, it would be Sol, who built them.

Compare/contrast with the Ouroboros Loop "theory" that Sol spoke of, which undid the seal on Ky when he was sealed away by Valentine when she first attacked Illyria.

It's unclear exactly why she spared Ky, only that the end result caused him to be sealed away in a similar seal to that of Dizzy, though in her case, even if the seal was undone, it could not stop the sublimation that was affecting and eating away at her body.

To undo the sublimation would require Valentine to be defeated, or so it was suggested at the time, since the spells were tied directly with Valentine's powers.

Most dimensional-based theories (spells) and even barrier seals (like the one that sealed up Justice at the end of the Crusades) usually follow certain rules to be activated and triggered.

A very powerful seal would require a slow activation, or at the very least a great deal of mana to be used to make up for the amount of time it would usually take for the spell to activate.

Since Valentines are already blessed with a great deal of mana capacity, casting such spells in quick succession would be an easy feat for them compared to humans (this was also true of Justice, whom Valentines are based off of).

In Ky Kiske's particular case... because he did not have the base mana to establish the Time Seal spell to halt Dizzy's "time".... the Thunderseal itself was used up as part of the cost.

Again, why this happened, and what exactly triggered it, aren't fully known yet.

Moving on... in regards to how Axl Low's powers influence time... they have an even greater cost, greater risk, and there's less capability for them to be controlled.

The "cost" in Axl Low's case, relates to how this world's Timeline is asserted.

Throughout much of Axl Low's misadventures, any time he time slipped, it was somehow connected with his memories and emotional state.  He wasn't aware of it at first, but now he has some idea of how to control these powers at will.

Axl himself would never time slip in places where he could not exist or had not existed previously in terms of logical placement.  Even if he visited a place completely abandoned by humans or any other living creature... said place was still connected with past memories of places he had been before, or would later visit, or connected with people he once knew.

But as it happens, each time Axl Time Slipped... the Timeline he left previously would cease to exist, asserting a new timeline each time.  That itself was the cost... and it was a hefty cost at that.

While Axl can slow down and halt time temporarily, there's an exchange involved whenever he does this.  For example, if someone died in the previous timeline, so long as he asserted this current timeline, there would be no means to bring them back or alter their fate.

It's also not possible for Axl to visit previous timelines he has left behind, so even if he can "slow time", he cannot change or halt it forever, at least without consequences.

By slowing down time in "this timeline", he asserts his influence and power within this timeline itself, but because of the heftiness of his powers, he currently has no control over "how much" he can use or how much he can influence.

While Dimensional Seals (or Dimensional Prisons) can halt/isolate an individual's "space/influence", they cannot entirely halt a person's "time".  A good example of this is when Zato=ONE was having a conversation with Eddie while he was imprisoned by the Conclave after his revival.  Even Justice was able to temporarily influence Testament while she was inside her Dimensional seal.

Even in the case of Miyabi, the Japanese Dimensional Colony, while the barrier itself does affect space around it, and even has artificial weather and seasons within the barrier... all the Japanese residents inside aren't fully sealed, and continue their personal lives as they normally would, albeit in a quarantined state.

While the Thunderseal did, in fact, temporarily slow the progression of Dizzy's time, it still came at the cost of the sword itself.

It's still a mystery in fact that the Thunderseal was able to regenerate itself after the fact, since the cost of activating such a spell was very high.

We also do not know if the spell was later undone by itself, or if Dizzy simply broke the spell herself (VastEdge's story was vague in telling us the result).  The latter of which would normally not be possible without outside influence (even if Dr. Paradigm was or was not involved).

In general, most Isolated Spaces or Barriers (like the Cube for another example), are a kind of space magic that isn't normally established without some high cost to begin with.

In Testament's case, he not only needed the blood of several victims, but his very own blood to undo the seal placed on Justice, so even he paid a very high price as well.