>>52554398>RegigigasI keep forgetting there's supposed to be multiple of each Regi. The "Registeel lost in the Mantle" makes me chuckle.
>"recruitment" pool from natural thermal vent residentsFrom my knowledge (and a quick bout of google-fu), creatures living around thermal vents are there because certain bacteria convert the minerals/chemicals given off by the vents into useable energy. I'm not sure a mobile Chi-Yu could harbor such a colony, but I guess it's plausible enough. What mons might be following? Binacle line probably; they're closest to a tube worm mon. I almost feel like Macargo would fit. Lileep? If you want to combine with the Regi ideas, the Regis are getting pissed because someone decided to toss the fire fish in the ocean and it's messing up their work down there. They gotta be calmed down, maybe a couple get recruited.
On another note, I've now finished Anamnesis. Still not entirely clear on the setting/how the stories connect, but it's good and very different from YAPMD, which I read first.