How does the yokai realm affects Hide?

[Kayderim]

I noticed that the Kesha soul core turns blue inside the yokai realm, implying the flame is stronger, the cat also gets stronger in there, how does it affect us? Does every soul core gets stronger? What about the Yokai transformation?

[devious goon]

You mean the dark realm, yokai realm are those dark pools that yokai create when they spawn or they're out of ki. But to answer your question I can think of only one core that gets stronger in the dark realm (ippon leaves a pool of fire on the ground) however you build anima much faster which allows you to make more use of cores and it helps a lot

[Creep Gnome]

There are a few cores that get better in the dark realm. Off hand, I recall Koroka will create more fireballs, Kasha I think just does more damage, Ippon-Datara (as mentioned above) will create a pool of fire on the ground.

There are probably more, you just need to experiment with them to find out