"Pretty much everything but touch. You can't put your hands on something that isn't real," didn't keep her from trying a few times, though, "Let me... try something real quick."
As opposed to the darkness that Vas filled the area with, Kore tried to paint a picture.
The sky, and the alleyway in which they both stood, lit up as though the eternal stormclouds that blotted out the sun vanished and blanketed Duskburg in light. And yet, despite the horror unfolding before Vas' eyes... he did not burn. Honestly, he didn't even warm up. There were birds in the sky and a plane passing overhead. For a moment, it all probably looked real.
Until he took a closer look at the individual elements painting the picture.
A pidgeon came down from out of the sky and landed near Vas. And it was... disturbing. It's feathers were textured like cotton, it's anatomy was just different enough from that of an actual bird to elicit an instictual disgust and sense of unease. And the wind that slowly blew through the alleyway had no effect on it's body whatsoever. And, if he took a whiff of the bird, he'd notice that, while it did, indeed have a scent, it damn sure didn't match that of an the real deal.
The only thing Kore did have spot on was the sound of the pidgeon's coo.
Kore wasn't sure how good his eyes were, but if Vas did have superhuman sight and took a good look at the plane off in the "distance" above him, he'd notice a distinct lack of detail that the average citizen might not've noticed. Unfortunately, it wasn't the average citizen that Kore was going to have to end up dealing with.
After giving him a moment to take all that in, she let the illusion fade and let the eternal night that plagued the city wash over it once more.
"The hard part is... all the fine details. It's not magic, so it doesn't fill in all the blanks for me. Making random noises, stink and smokescreens are easy. Everything else is a fucking nightmare. I have gotten pretty good at one thing, though," to her side, she produced the spitting image of herself. Her actual self, down to every pour and stitch in her jacket. Even the scent matched her own. And, from here on out, she let the illusion speak on her behalf, "Pretty good, right? Well, it took me about... I want to say thirty hours of 'self-study' just to get this right. At least as far as I can tell."
She let the illusion fade and spoke for herself once again.
"As of now, that's pretty much all I've got. But yeah..." An uncomfortably long pause as her eyes drifted away from his and she... pushed the rest of the words out, "Yes. I would not mind being shown how to better use this."