Ahh, it feels nice to do things this way again :3 These are fossils. I was thinking about the fact that the fossil pokemon you bring back might be sad that only a handful of them exist in the world and that their natural habitat is probably gone.
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Basic Stage Name: Lubble (Hallow Pokemon) Type: Rock Ability: Levitate
Evolves: Dusk Stone
Bio: Due to how distraught they seem after being revived, it is illegal to have its fossil. Research has shown that long ago they did not evolve.
Bio: Its shell is the only part of it in reality; the rest of it (while visible) seems to be in a different dimension. It will never try to get other things to reach inside it, but those that do will be sucked in and vanish forever.
Also, as it's illegal to possess its fossil, how would the player character acquire Lubble? Black market? A population descended from those revived before the law was passed?
I was thinking that you would probably just find the fossil in some ruins and take it to a mad scientist that cares about science more than the well being of Pokemon.