It's called a Lichtenberg figure. They appear on lightning strike victims. The fact that they're appearing on you after a shot of wolf lichen is both significant and strange.
...by "significant and strange," do you mean, "hopeful and optimistic?"
“Unfinished Business” · Season 1, Episode 15
In this episode: Dean Winchester (940), Damon Salvatore (715), Sam Winchester (665), Olivia Benson (637), Stephen Fry (608), Narrator (554), Clark Kent (523), Nate (486)
So, when the nogitsune takes over, you're going to kill me?
I'm going to do what I've always done-- maintain the balance.
[sighs] Okay, then. I've missed our talks. Thanks for the illicit drugs.
I was kind of wondering why you punched me...
Did you think I was going to thank you?
No... [She stares at him skeptically] ...Maybe. We did kind of save your life?
[sarcastically] You're right, Stiles. Thank you. Thanks for invading my home, for putting me on the run. For turning me back to human, so that I could look at my father every day and try to figure out how to explain to him that the reason my sister and mother are dead is because I almost ate them on a full moon. Thank you so very much.
This is a really bad plan.
... It's not that bad.
[exasperatedly] It's not that good.
[sighs] None of us knows the route they're going to take. If Allison can get one of her dad's GPS trackers on the armored car, then we can follow it. So, when it gets here... [She points to a spot on the map]
We attack them?
No. Your bikes will be in the middle of the road, looking like you guys got into an accident. And when the driver gets out to help...
[hopefully] We attack him?
Lydia & Allison: [in unison] NO.
You distract him. And Scott will break open the back door--
[nervously] --I hope--
[ignores him] --And you'll get Katashi's finger.
[alarmed] It's not his actual finger, is it?
[sighs in frustration] You're so out of our league.
[to Argent] I don't fish, mijo. I hunt.
[to Kincaid] Give me the finger. [Kindcaid looks at him in amusement and confusion, and Scott sighs] You know what I mean.
Was that your first kiss? [Malia nods] was it okay? You want to try it again?
[Malia nods and they kiss again]
You want him to come after us?
Scott, we've seen guys like this. Trust us, he's dangerous.
So are we. And he looks smart enough to remember that. We're here to save a life, not end one.
Does it say anything?
My Japanese isn't great... but, it appears to say that one method of expelling a nogitsune is to change the body of the host.
[confused] Change the body?
Which begs the question... how do we change Stiles' body?
...By turning him into a werewolf.
NSNogitsune/Stiles
No. No, I'd like to talk to you. The older the tail, the stronger the oni. Am I right? I know there's one tail left. I know it's the strongest.
Unfortunately, I don't know what you're referring to.
NSNogitsune/Stiles
[sighs] You'll talk.
[One of the nogitsune's flies forces itself down Ken's throat]
NSNogitsune/Stiles
They always talk.
You going to tell me what it is?
Reishi.
[incredulously] You're not seriously giving Dad magic mushrooms?
If that's you, then you'd have to be like, ninety years old.
[smiles] Closer to nine hundred.
[stunned] Okay. Sure. Why not? [She turns to Ken] Dad, how old are you?
Forty-three. But, I've been told I look mid-thirties.
All this, it's all happened before, hasn't it?
Yes.
Those who cannot remember the past are condemned to repeat it.
I know what you think of me, Noshiko. You think I am weak because I follow the rules. You think rules are for the obedience of fools and cowards. The young fox always knows the rules so she can break them. The older, wiser animal learns the exceptions to the rules.
[to Scott] Wolves and foxes tend not to get along. And not just in fables and stories.
[to Noshiko] But allies, however unlikely, should be welcomed. Especially in times of war.
These quotes come from Wikiquote's Criminal Minds pages and are available under the Creative Commons Attribution-ShareAlike License.