Oh no, help. My mind tends to frequently drift out of focus and not pay attention. And there's a post going around with a couple hundred notes that says Cas will die when his stolen grace burns out? But I thought when it burns out, he would just turn back into a human. Do you know what key line or scene I missed that indicated that Cas' bad grace running out equates to dying? (I think I remember something being said about it being cancerous to/harming his vessel? Is it that? God, I'm oblivious.)
The one that comes to mind from last night is during Metatron’s video call, where he asks if Cas’ army knows about his Grace problem. I don’t have the scene in front of me, but he says something to the effect of, “Do they know that your stolen Grace is burning out, and it’ll burn you out with it?”
There was a post I remember seeing a while ago, with a comment from Misha at one of the cons where he said the Grace will reject like an organ. I don’t know how accurate of a simile that is.
From what’s already been said, back in 9x18 Meta Fiction, this is how it was phrased [x]:
METATRON: Mm. You’re gonna make me do the hard pitch, aren’t you? How’s that, um, stolen grace inside you working out?
METATRON: No. It’s not. It’s burning out. It’s gonna burn you out.
I really hope turning human is all that happens. There’s an awful lot of interesting storytelling that could happen with that arc that they kind of skipped out on the first time. But now I’m worried about this, which only built further on the fear I expressed earlier.