Yamask grips its mask with one arm(?) and the other little tail thing that always holds it. For a second, it doesn't do anything at all. Then it slowly waves its free arm at Mecchan.

Eren raises an eyebrow. The little ghost isn't exactly that social, but that's why he brought it here anyway. It might not be good at being friendly, but it's not mean unless someone touches its mask. Or unless Levi's cat antagonises it, in which case it will fight back, more or less.

"I heard they can fight, but we've never done that. I don't think Yamask is really a fighter," he says. He wonders, though. Could it be? Would it want to be? How much of their speech does it really understand? He assumes it understands most things since apparently it used to be human. That whole thing seems kind of gruesome, but if it was human, surely it can understand some things.

Eren doesn't spend too much time thinking about how horrifying Yamask's origin actually is.

He finds the Zubat in question flying around.

"I'm not even sure I can be poisoned," he says. He means that titans aren't susceptible, but he probably has some immunity to poisons from his summer powers too. Even Eren isn't entirely sure what the extent of his power there is.

"I got Yamask before I came here, but I didn't even know there were others. I didn't know the word Pokemon until coming here."